最近把发验证邮件的邮箱服务器换成了Docker（tvial/docker-mailserver），但是通过运行在Docker的Calibre-Web（linuxserver/calibre-web）发送验证邮件老是不成功。上去Docker查看了mailserver的log，显示如下错误信息：
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smtp postfix/submission/smtpd[17987]: NOQUEUE: reject: RCPT from unknown[183.33.241.13]: 501 5.5.2 <600>: Helo command rejected: Invalid name |
然后去谷歌了一下，找到了篇类似问题的QA，
It seems that you restrict EHLO for your authenticated users. Change:
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smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_hostname, reject_invalid_hostname, permit |
to:
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smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_invalid_hostname, permit |
然后通过docker-mailserver的帮助，怎么覆盖posfix的默认配置
https://github.com/tomav/docker-mailserver/wiki/Override-Default-Postfix-Configuration
在docke-compose的目录里面切换到config，创建一个postfix-main.cf配置文件，把上面的smtpd_helo内容填进去。
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root@smtp:/sharedfolders/docker/mailserver/config# ls opendkim postfix-accounts.cf postfix-aliases.cf postfix-main.cf postfix-virtual.cf ssl root@smtp:/sharedfolders/docker/mailserver/config# cat postfix-main.cf #fix "Helo command rejected: Invalid name" smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_invalid_hostname, permit |
然后运行docker-compose关闭再开启docker-mailserver应用配置.
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root@smtp:/sharedfolders/docker/mailserver# docker-compose down Stopping mail ... done Removing mail ... done Removing network mailserver_default root@smtp:/sharedfolders/docker/mailserver# docker-compose up -d mail Creating network "mailserver_default" with the default driver Creating mail |
然后再在Calibre-Web点发送验证邮件就成功了。