sudo tail /var/log/maillog
Oct 3 06:39:28 instance-23 postfix/master[63679]: warning: process /usr/libexec/postfix/trivial-rewrite pid 64274 exit status 1
Oct 3 06:39:28 instance-23 postfix/master[63679]: warning: /usr/libexec/postfix/trivial-rewrite: bad command startup -- throttling
Oct 3 06:39:54 instance-23 postfix/qmgr[63681]: warning: problem talking to service rewrite: Connection timed out
Oct 3 06:40:25 instance-23 postfix/postscreen[64336]: fatal: myhostname and relayhost parameter settings must not be identical: mail.duchi.net
Oct 3 06:40:26 instance-23 postfix/master[63679]: warning: process /usr/libexec/postfix/postscreen pid 64336 exit status 1
Oct 3 06:40:26 instance-23 postfix/master[63679]: warning: /usr/libexec/postfix/postscreen: bad command startup -- throttling
Oct 3 06:40:28 instance-23 postfix/trivial-rewrite[64337]: fatal: myhostname and relayhost parameter settings must not be identical: mail.duchi.net
Oct 3 06:40:29 instance-23 postfix/master[63679]: warning: process /usr/libexec/postfix/trivial-rewrite pid 64337 exit status 1
Oct 3 06:40:29 instance-23 postfix/master[63679]: warning: /usr/libexec/postfix/trivial-rewrite: bad command startup -- throttling
Oct 3 06:40:55 instance-23 postfix/qmgr[63681]: warning: problem talking to service rewrite: Connection timed out
发布于 2020-10-03 08:43:43
邮件服务器或邮件传输代理(mta)所需的防火墙配置如下;
您可以使用从Internet上找到的端口控制网页检查上述端口。
此外,如果您可以指定操作系统,我可以帮助您定义防火墙。
https://serverfault.com/questions/1036227
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