SMTP 配置

如果您希望通过一个 SMTP 服务器发送应用邮件，而不是通过 Sendmail，需要在 /etc/gitlab/gitlab.rb 中添加以下配置信息，并执行 gitlab-ctl reconfigure 命令。

caution您的 smtp_password 不应包含任何 ruby 或 YAML 中使用的字符串定界符，以避免在设置过程中发生意外情况。
gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.server"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "smtp user"
gitlab_rails['smtp_password'] = "smtp password"
gitlab_rails['smtp_domain'] = "example.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

# If your SMTP server does not like the default 'From: gitlab@localhost' you
# can change the 'From' with this setting.
gitlab_rails['gitlab_email_from'] = 'gitlab@example.com'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@example.com'

# If your SMTP server is using a self signed certificate or a certificate which 
# is signed by a CA which is not trusted by default, you can specify a custom ca file.
# Please note that the certificates from /etc/gitlab/trusted-certs/ are
# not used for the verification of the SMTP server certificate.
gitlab_rails['smtp_ca_file'] = '/path/to/your/cacert.pem'

SMTP 连接池

您可以通过以下设置启用 SMTP 连接池： 

gitlab_rails['smtp_pool'] = true

这样允许 Sidekiq 的 workers 可以将 SMTP 连接重用于多个作业。连接池中的最大连接数遵循 Sidekiq 的最大并发配置。

使用加密凭据

引入于 14.3 版本。

您可以选择使用加密文件作为 SMTP 凭据，而不是将 SMTP 凭据以纯文本形式存储在配置文件中。要使用此功能，您首先需要启用极狐GitLab 加密配置。

SMTP 的加密配置存在于加密的 YAML 文件中。默认情况下，该文件将在 /var/opt/gitlab/gitlab-rails/shared/encrypted_configuration/smtp.yaml.enc 中创建。此位置可在极狐GitLab 中配置。

文件的未加密内容应该是 gitlab_rails 配置块中的 smtp_*' 设置的子集。

加密文件支持的配置项有：

  • user_name
  • password

The encrypted contents can be configured with the SMTP secret edit Rake command.

配置

如果最初您的 SMTP 配置如下所示：

  1. 在 /etc/gitlab/gitlab.rb 中： 
  gitlab_rails['smtp_enable'] = true
  gitlab_rails['smtp_address'] = "smtp.server"
  gitlab_rails['smtp_port'] = 465
  gitlab_rails['smtp_user_name'] = "smtp user"
  gitlab_rails['smtp_password'] = "smtp password"
  gitlab_rails['smtp_domain'] = "example.com"
  gitlab_rails['smtp_authentication'] = "login"
  gitlab_rails['smtp_enable_starttls_auto'] = true
  gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

  1. 编辑加密的 secret： 

    sudo gitlab-rake gitlab:smtp:secret:edit EDITOR=vim

  2. SMTP secret 的未加密内容应输入如下： 

    user_name: 'smtp user'
password: 'smtp password'
  3. 编辑 /etc/gitlab/gitlab.rb 并删除 smtp_user_name 和 smtp_password 的设置。

  4. 重新配置极狐GitLab： 

    sudo gitlab-ctl reconfigure

配置举例

SMTP on localhost

该配置仅启用 SMTP，除此之外使用默认设置，可用于在 localhost 上运行 MTA（MailTransferAgent），不提供 sendmail 接口或提供与极狐GitLab 不兼容的 sendmail 接口，例如 Exim。 

gitlab_rails['smtp_enable'] = true

SMTP without SSL

默认情况下，SMTP 已启用 SSL。如果您的 SMTP 服务器不支持通过 SSL 通信，请使用以下设置： 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = 'localhost'
gitlab_rails['smtp_port'] = 25
gitlab_rails['smtp_domain'] = 'localhost'
gitlab_rails['smtp_tls'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'none'
gitlab_rails['smtp_enable_starttls_auto'] = false
gitlab_rails['smtp_ssl'] = false
gitlab_rails['smtp_force_ssl'] = false

Gmail

noteGmail 有严格的发送限制，随着组织增长，功能性会受到削弱。在为团队配置 SMTP 时，强烈推荐使用使用邮件事务服务，例如 SendGrid 或 Mailgun。
gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.gmail.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "my.email@gmail.com"
gitlab_rails['smtp_password'] = "my-gmail-password"
gitlab_rails['smtp_domain'] = "smtp.gmail.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'peer' # Can be: 'none', 'peer', 'client_once', 'fail_if_no_peer_cert', see http://api.rubyonrails.org/classes/ActionMailer/Base.html

不要忘记将 my.email@gmail.com 改为您的 Email 地址，将 my-gmail-password 改为您的密码。

Mailgun 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.mailgun.org"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_authentication'] = "plain"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_user_name'] = "postmaster@mg.gitlab.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "mg.gitlab.com"

Amazon Simple Email Service (AWS SES)

  • Using STARTTLS 
gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "email-smtp.region-1.amazonaws.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "IAMmailerKey"
gitlab_rails['smtp_password'] = "IAMmailerSecret"
gitlab_rails['smtp_domain'] = "yourdomain.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true

确保在 ACL 和安全组中允许出口流量通过 587 端口。

  • Using TLS Wrapper 
gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "email-smtp.region-1.amazonaws.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "IAMmailerKey"
gitlab_rails['smtp_password'] = "IAMmailerSecret"
gitlab_rails['smtp_domain'] = "yourdomain.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_ssl'] = true
gitlab_rails['smtp_force_ssl'] = true

确保在 ACL 和安全组中允许出口流量通过 465 端口。

Mandrill 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.mandrillapp.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "MandrillUsername"
gitlab_rails['smtp_password'] = "MandrillApiKey" # https://mandrillapp.com/settings
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true

SMTP.com

您可以使用 SMTP.com 电子邮件服务。从您的帐户检索您的发件人登录名和密码 。

要通过授权 SMTP.com 代表您的域名发送电子邮件，来改进交付，您应该： 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = 'send.smtp.com'
gitlab_rails['smtp_port'] = 25 # If your outgoing port 25 is blocked, try 2525, 2082
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_authentication'] = 'plain'
gitlab_rails['smtp_user_name'] = 'your_sender_login' 
gitlab_rails['smtp_password'] = 'your_sender_password'
gitlab_rails['smtp_domain'] = 'your.gitlab.domain.com'
gitlab_rails['gitlab_email_from'] = 'user@your.gitlab.domain.com' 
gitlab_rails['gitlab_email_reply_to'] = 'user@your.gitlab.domain.com'

查看 SMTP.com 知识库 以获得进一步帮助。

SparkPost 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.sparkpostmail.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "SMTP_Injection"
gitlab_rails['smtp_password'] = "SparkPost_API_KEY" # https://app.sparkpost.com/account/credentials
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true

Gandi 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mail.gandi.net"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_authentication'] = "plain"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_user_name'] = "your.email@domain.com"
gitlab_rails['smtp_password'] = "your.password"
gitlab_rails['smtp_domain'] = "domain.com"

Zoho Mail

该配置使用自定义域名在 Zoho Mail 上进行过测试。 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.zoho.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_authentication'] = "plain"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_user_name'] = "gitlab@mydomain.com"
gitlab_rails['smtp_password'] = "mypassword"
gitlab_rails['smtp_domain'] = "smtp.zoho.com"
gitlab_rails['gitlab_email_from'] = 'gitlab@example.com'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@example.com'

SiteAge, LLC Zimbra Mail 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = 'mail.siteage.net'
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = 'gitlab@domain.com'
gitlab_rails['smtp_password'] = 'password'
gitlab_rails['smtp_authentication'] = 'login'
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['gitlab_email_from'] = "gitlab@domain.com"
gitlab_rails['smtp_tls'] = true

OVH 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "ssl0.ovh.net"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@domain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "ssl0.ovh.net"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'none'

Outlook 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp-mail.outlook.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username@outlook.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "smtp-mail.outlook.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

Office365 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.office365.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username@yourdomain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "yourdomain.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'
gitlab_rails['gitlab_email_from'] = 'username@yourdomain.com'

Office365 relay 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "your mx endpoint"
gitlab_rails['smtp_port'] = 25
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_domain'] = "yourdomain.com"
gitlab_rails['gitlab_email_from'] = 'username@yourdomain.com'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@yourdomain.com'

Online.net 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtpauth.online.net"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@domain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "online.net"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'none'

Amen.fr / Securemail.pro 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp-fr.securemail.pro"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@domain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_tls'] = true

1&1 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.1and1.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "my.email@domain.com"
gitlab_rails['smtp_password'] = "1and1-email-password"
gitlab_rails['smtp_domain'] = "domain.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true

yahoo 

gitlab_rails['gitlab_email_from'] = 'user@yahoo.com'
gitlab_rails['gitlab_email_reply_to'] = 'user@yahoo.com'

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.mail.yahoo.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "user@yahoo.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

QQ exmail

QQ exmail (腾讯企业邮箱) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.exmail.qq.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "xxxx@xx.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['gitlab_email_from'] = 'xxxx@xx.com'
gitlab_rails['smtp_domain'] = "exmail.qq.com"

NetEase Free Enterprise Email

NetEase Free Enterprise Email (网易免费企业邮) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.ym.163.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "xxxx@xx.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['gitlab_email_from'] = 'xxxx@xx.com'
gitlab_rails['smtp_domain'] = "smtp.ym.163.com"

SendGrid with username/password authentication 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.sendgrid.net"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "a_sendgrid_crendential"
gitlab_rails['smtp_password'] = "a_sendgrid_password"
gitlab_rails['smtp_domain'] = "smtp.sendgrid.net"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false

SendGrid with API Key authentication

如果您不想提供用户名/密码，您可以使用 API key： 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.sendgrid.net"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "apikey"
gitlab_rails['smtp_password'] = "the_api_key_you_created"
gitlab_rails['smtp_domain'] = "smtp.sendgrid.net"
gitlab_rails['smtp_authentication'] = "plain"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false

Sendinblue

This configuration was tested with Sendinblue’s SMTP relay service. To grab the relevant account credentials via the URLs commented into this example, log in to your Sendinblue account. For further details, refer to Sendinblue’s help page. 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp-relay.sendinblue.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "<username@example.com>" # https://account.sendinblue.com/advanced/api
gitlab_rails['smtp_password'] = "<password>"              # https://account.sendinblue.com/advanced/api
gitlab_rails['smtp_domain'] = "<example.com>"             # https://account.sendinblue.com/senders
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['gitlab_email_from'] = '<gitlab@example.com>'
gitlab_rails['gitlab_email_reply_to'] = '<noreply@example.com>'

SMTP2GO

This configuration was tested using SMTP2GO. To get the relevant account credentials using the URLs commented in this example, sign in to your SMTP2GO account. 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mail.smtp2go.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "<username>"    # https://app.smtp2go.com/settings/users
gitlab_rails['smtp_password'] = "<password>"     # https://app.smtp2go.com/settings/users
gitlab_rails['smtp_domain'] = "<example.com>"    # https://app.smtp2go.com/settings/sender_domains
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true

Yandex 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.yandex.ru"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "login"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "yourdomain_or_yandex.ru"
gitlab_rails['gitlab_email_from'] = 'login_or_login@yandex.ru'
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

UD Media 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mail.udXX.udmedia.de" # Replace XX, see smtp server information: https://www.udmedia.de/login/mail/
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "login"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

Microsoft Exchange (No authentication) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "example.com"
gitlab_rails['smtp_port'] = 25
gitlab_rails['smtp_domain'] = "example.com"
gitlab_rails['smtp_enable_starttls_auto'] = true

Microsoft Exchange (with authentication) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mail.example.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username@domain.com"
gitlab_rails['smtp_password'] = 'password'
gitlab_rails['smtp_domain'] = "mail.example.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true

Strato.de 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.strato.de"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@stratodomain.de"
gitlab_rails['smtp_password'] = "strato_email_password"
gitlab_rails['smtp_domain'] = "stratodomain.de"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'none'

Rackspace 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "secure.emailsrvr.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@domain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "domain.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

gitlab_rails['gitlab_email_from'] = 'username@domain.com'
gitlab_rails['gitlab_email_reply_to'] = 'username@domain.com'

DomainFactory (df.eu) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "sslout.df.eu"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@domain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "domain.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'none'

Infomaniak (infomaniak.com) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mail.infomaniak.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "mail.infomaniak.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'none'

GoDaddy (TLS)

  • 欧洲服务器: smtpout.europe.secureserver.net
  • 亚洲服务器: smtpout.asia.secureserver.net
  • 全球(US)服务器: smtpout.secureserver.net 
gitlab_rails['gitlab_email_from'] = 'username@domain.com'

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtpout.secureserver.net"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@domain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "domain.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true

GoDaddy (No TLS)

查看上方的 GoDaddy (TLS) 条目，邮件服务器列表。 

gitlab_rails['gitlab_email_from'] = 'username@domain.com'

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtpout.secureserver.net"
gitlab_rails['smtp_port'] = 80
gitlab_rails['smtp_user_name'] = "username@domain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "domain.com"
gitlab_rails['smtp_authentication'] = "plain"
gitlab_rails['smtp_enable_starttls_auto'] = false
gitlab_rails['smtp_tls'] = false

OpenSRS (hostedemail.com) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mail.hostedemail.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@domain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "domain.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_enable_starttls_auto'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

gitlab_rails['gitlab_email_from'] = 'username@domain.com'
gitlab_rails['gitlab_email_reply_to'] = 'username@domain.com'

Aruba (aruba.it) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtps.aruba.it"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "user@yourdomain.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "yourdomain.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_ssl'] = true

Aliyun Direct Mail

阿里云邮件推送。 

gitlab_rails['gitlab_email_from'] = 'username@your domain'
gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtpdm.aliyun.com"
gitlab_rails['smtp_port'] = 80
gitlab_rails['smtp_user_name'] = "username@your domain"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "your domain"
gitlab_rails['smtp_authentication'] = "login"

Aliyun Enterprise Mail with TLS

阿里企业邮箱。 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.qiye.aliyun.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@your domain"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "your domain"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = false
gitlab_rails['smtp_tls'] = true

FastMail

FastMail 需要 应用密码，无论两步认证是否启用。 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.fastmail.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "account@fastmail.com"
gitlab_rails['smtp_password'] = "app-specific-password"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

Dinahosting 

gitlab_rails['gitlab_email_from'] = 'username@example.com'
gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "example-com.correoseguro.dinaserver.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username-example-com"
gitlab_rails['smtp_password'] = "mypassword"
gitlab_rails['smtp_domain'] = "example-com.correoseguro.dinaserver.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = false
gitlab_rails['smtp_tls'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

Office 365 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.office365.com"
gitlab_rails['smtp_port'] = 25
gitlab_rails['smtp_user_name'] = "user.name@company.com"
gitlab_rails['smtp_password'] = "secret"
gitlab_rails['smtp_domain'] = "company.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false

GMX Mail 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mail.gmx.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "my-gitlab@gmx.com"
gitlab_rails['smtp_password'] = "Pa5svv()rD"
gitlab_rails['smtp_domain'] = "mail.gmx.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

### Email Settings
gitlab_rails['gitlab_email_enabled'] = true
gitlab_rails['gitlab_email_from'] = 'my-gitlab@gmx.com'
gitlab_rails['gitlab_email_display_name'] = 'My GitLab'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@gmx.com'

Hetzner 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mail.your-server.de"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "user@example.com"
gitlab_rails['smtp_password'] = "mypassword"
gitlab_rails['smtp_domain'] = "mail.your-server.de"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['gitlab_email_from'] = "example@example.com"

Snel.com 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtprelay.snel.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_domain'] = "example.com"
gitlab_rails['smtp_authentication'] = false
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['gitlab_email_from'] = "example@example.com"
gitlab_rails['gitlab_email_reply_to'] = "example@example.com"

JangoSMTP 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "express-relay.jangosmtp.net"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_authentication'] = "plain"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_user_name'] = "your.username"
gitlab_rails['smtp_password'] = "your.password"
gitlab_rails['smtp_domain'] = "domain.com"
gitlab_rails['gitlab_email_from'] = 'gitlab@domain.com'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@domain.com'

Mailjet 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "in-v3.mailjet.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "mailjet-api-key"
gitlab_rails['smtp_password'] = "mailjet-secret-key"
gitlab_rails['smtp_domain'] = "in-v3.mailjet.com"
gitlab_rails['smtp_authentication'] = "plain"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['gitlab_email_from'] = 'gitlab@domain.com'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@domain.com'

Mailcow 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.example.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "yourmail@example.com"
gitlab_rails['smtp_password'] = "yourpassword"
gitlab_rails['smtp_domain'] = "smtp.example.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'none'

ALL-INKL.COM 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "<userserver>.kasserver.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "<username>"
gitlab_rails['smtp_password'] = "<password>"
gitlab_rails['smtp_domain'] = "<your.domain>"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_tls'] = true

webgo.de 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "sXX.goserver.host" # or serverXX.webgo24.de
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "webXXXpX"
gitlab_rails['smtp_password'] = "Your Password"
gitlab_rails['smtp_domain'] = "sXX.goserver.host" # or serverXX.webgo24.de
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['gitlab_email_from'] = 'Your Mail Address'
gitlab_rails['gitlab_email_reply_to'] = 'Your Mail Address'

mxhichina.com 

gitlab_rails['gitlab_email_from'] = "username@company.com"
gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.mxhichina.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@company.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "mxhichina.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true

Postmark 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.postmarkapp.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "your_api_token"
gitlab_rails['smtp_password'] = "your_api_token"
gitlab_rails['smtp_domain'] = "example.com"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['gitlab_email_from'] = 'gitlab@example.com'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@example.com'

easyDNS (outbound mail)

检查是否可用或已启用，以及 控制面板 中的配置。 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mailout.easydns.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_force_ssl'] = true
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_user_name'] = "example.com"
gitlab_rails['smtp_domain'] = "example.com"
gitlab_rails['smtp_password'] = "password_you_set"
gitlab_rails['gitlab_email_from'] = 'no-reply@git.example.com'

Campaign Monitor 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.api.createsend.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "your_api_token" # Menu > Transactional > Send with SMTP > SMTP tokens > Token
gitlab_rails['smtp_password'] = "your_api_token"  # Same as gitlab_rails['smtp_user_name'] value
gitlab_rails['smtp_domain'] = "example.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'
gitlab_rails['gitlab_email_from'] = 'gitlab@example.com'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@example.com'

Freehostia 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mbox.freehostia.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@example.com"
gitlab_rails['smtp_password'] = "password_you_set"
gitlab_rails['smtp_domain'] = "mbox.freehostia.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'none'

Mailbox.org 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.mailbox.org"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "username@example.com"
gitlab_rails['smtp_password'] = "password_you_set"
gitlab_rails['smtp_domain'] = "smtp.mailbox.org"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'none'

Mittwald CM Service (mittwald.de) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "mail.agenturserver.de"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username@example.com"
gitlab_rails['smtp_password'] = "password_you_set"
gitlab_rails['smtp_domain'] = "example.com"
gitlab_rails['smtp_authentication'] = "plain"
gitlab_rails['smtp_enable_starttls_auto'] = true

gitlab_rails['gitlab_email_from'] = "username@example.com"
gitlab_rails['gitlab_email_reply_to'] = "username@example.com"

Unitymedia (.de) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "submit.unitybox.de"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username@unitybox.de"
gitlab_rails['smtp_password'] = "yourPassword"
gitlab_rails['smtp_domain'] = "submit.unitybox.de"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'none'
gitlab_rails['gitlab_email_from'] = 'gitlab@example.com'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@example.com'

united-domains AG (united-domains.de) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.udag.de"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "example-com-0001"
gitlab_rails['smtp_password'] = "smtppassword"
gitlab_rails['smtp_domain'] = "example.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

gitlab_rails['gitlab_email_enabled'] = true
gitlab_rails['gitlab_email_from'] = 'gitlab@example.com'
gitlab_rails['gitlab_email_display_name'] = 'GitLab - my company'
gitlab_rails['gitlab_email_reply_to'] = 'noreply@example.com'

IONOS by 1&1 (ionos.de) 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.ionos.de"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "your-user@your-domain.de"
gitlab_rails['smtp_password'] = "Y0uR_Pass_H3r3"
gitlab_rails['smtp_domain'] = "your-domain.de"
gitlab_rails['smtp_authentication'] = 'login'
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'none'
gitlab_rails['gitlab_email_from'] = 'your-user@your-domain.de'

AWS Workmail

来源于 AWS workmail 文档: 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.server"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "smtp user"
gitlab_rails['smtp_password'] = "smtp password"
gitlab_rails['smtp_domain'] = "example.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = false
gitlab_rails['smtp_tls'] = true
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

Open Telekom Cloud 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "login-cloud.mms.t-systems-service.com"
gitlab_rails['smtp_port'] = 25
gitlab_rails['smtp_domain'] = "yourdomain"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_user_name'] = "username"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['gitlab_email_from'] = 'gitlab@yourdomain'

Uberspace 6

来源于 Uberspace Wiki: 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "<your-host>.uberspace.de"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "<your-user>@<your-domain>"
gitlab_rails['smtp_password'] = "<your-password>"
gitlab_rails['smtp_domain'] = "<your-domain>"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false

Tipimail 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = 'smtp.tipimail.com'
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = 'username'
gitlab_rails['smtp_password'] = 'password'
gitlab_rails['smtp_authentication'] = 'login'
gitlab_rails['smtp_enable_starttls_auto'] = true

Netcup 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = '<your-host>.netcup.net'
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "<your-gitlab-domain>"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
# Netcup is picky about the usage of GitLab's TLD instead of the subdomain (if you use one).
# If this is not set up correctly, the scheduled emails will fail. For example, if
# GitLab's domain name is 'gitlab.example.com', the following setting should be set to
# 'gitlab@example.com'.
gitlab_rails['gitlab_email_from'] = "gitlab@<your-top-level-domain>"

Mail-in-a-Box 

gitlab_rails['gitlab_email_enabled'] = true
gitlab_rails['gitlab_email_from'] = 'gitlab@example.com'

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = 'box.example.com'
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username@example.com"
gitlab_rails['smtp_password'] = "password"
gitlab_rails['smtp_domain'] = "<your-gitlab-domain>"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true

NIFCLOUD ESS

SMTP 界面。 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.ess.nifcloud.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "SMTP user name"
gitlab_rails['smtp_password'] = "SMTP user password"
gitlab_rails['smtp_domain'] = "smtp.ess.nifcloud.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['smtp_openssl_verify_mode'] = 'peer'

gitlab_rails['gitlab_email_from'] = 'username@example.com'
gitlab_rails['gitlab_email_reply_to'] = 'username@example.com'

在 ESS 面板查看 SMTP 用户名和密码，gitlab_email_from 和 gitlab_email_reply_to 必须是 ESS 认证的发件人地址。

Sina mail

用户首先需要通过网页邮件界面的邮箱设置启用 SMTP，并获取验证码。获取更多信息，请查看新浪邮箱的帮助页面。 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.sina.com"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username@sina.com"
gitlab_rails['smtp_password'] = "authentication code"
gitlab_rails['smtp_domain'] = "smtp.sina.com"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['gitlab_email_from'] = 'username@sina.com'

Hostpoint

有关 Hostpoint 电子邮件的更多信息，请访问他们的帮助页面 

gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "asmtp.mail.hostpoint.ch"
gitlab_rails['smtp_port'] = 587
gitlab_rails['smtp_user_name'] = "username@example.com"
gitlab_rails['smtp_password'] = "authentication code"
gitlab_rails['smtp_domain'] = "asmtp.mail.hostpoint.ch"
gitlab_rails['smtp_authentication'] = "plain"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['gitlab_email_from'] = 'username@example.com'

测试 SMTP 配置

您可以使用 Rails 控制台验证是否可以正确发送电子邮件。 在极狐GitLab 服务器上，执行gitlab-rails console命令进入控制台。然后，您可以在控制台提示符下输入以下命令，以使系统发送测试电子邮件： 

Notify.test_email('destination_email@address.com', 'Message Subject', 'Message Body').deliver_now

SSL/TLS 故障排查

主要云提供商阻止了到端口 25 的出口连接

如果您使用云提供商来托管您的 GitLab 实例，并且您的 SMTP 服务器使用端口 25，则您的云提供商可能会阻止到端口 25 的出口连接。 这可以防止 GitLab 发送任何外发邮件。您可以按照以下说明解决此问题，具体取决于您的云提供商：

使用 SSL/TLS 时版本号错误

很多用户在配置 SMTP 后遇到以下报错： 

OpenSSL::SSL::SSLError (SSL_connect returned=1 errno=0 state=error: wrong version number)

该错误通常归咎于错误配置。

  • 如果您的 SMTP 供应商使用 25 或 587 端口，SMTP 连接开始时未加密，但可以通过 STARTTLS 进行升级。确保以下设置已添加： 

    gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false # This is the default and can be omitted
gitlab_rails['smtp_ssl'] = false # This is the default and can be omitted

  • 如果您的 SMTP 供应商使用 465 端口，通过 TLS 的 SMTP 连接开始时未加密。确保以下设置已添加： 

    gitlab_rails['smtp_tls'] = true

获取更多信息，请参阅 about the confusion over SMTP ports, TLS, and STARTTLS。

使用外部 Sidekiq 时不发送电子邮件

如果您的实例配置了外部 Sidekiq，则 SMTP 配置必须存在于外部 Sidekiq 服务器上的 /etc/gitlab/gitlab.rb 中。如果缺少 SMTP 配置，您可能会注意到电子邮件不会通过 SMTP 发送，因为许多 GitLab 电子邮件是通过 Sidekiq 发送的。

禁用所有外发电子邮件

note该操作将禁用从您的实例外发所有电子邮件，包括但不限于通知邮件、直接提醒邮件和密码重置邮件。

为了禁用外发所有电子邮件，您可以在 /etc/gitlab/gitlab.rb 中编辑或添加以下内容： 

gitlab_rails['gitlab_email_enabled'] = false

运行 sudo gitlab-ctl reconfigure 命令使变更生效。