其实官网已经说的很清楚了，并且给出了QQ邮箱的范例(BAT还是屌的)

1. 编辑/etc/gitlab/gitlab.rb文件(加到文件最后面就好了)。以QQ企业邮箱为例：

gitlab_rails['smtp_enable'] = true

gitlab_rails['smtp_address'] = "smtp.exmail.qq.com"

gitlab_rails['smtp_port'] = 465

gitlab_rails['smtp_user_name'] = "gitlab@fayfox.com"

gitlab_rails['smtp_password'] = "******"

gitlab_rails['smtp_authentication'] = "login"

gitlab_rails['smtp_enable_starttls_auto'] = true

gitlab_rails['smtp_tls'] = true

gitlab_rails['gitlab_email_from'] = 'gitlab@fayfox.com'

有的教程可能会说去改/opt/gitlab/etc/gitlab.rb，是错的，一切以官网文档为准

2. 重新配置gitlab

gitlab-ctl reconfigure

3. 通过命令行测试邮件是否发送成功(也可以不测)

gitlab-rails console

irb(main):003:0> Notify.test_email('369281831@qq.com', 'Message Subject', 'Message Body').deliver_now