请问大家 我最近刚刚新装pure的ubuntu 18.04在aws lightsail上 AWS预设有锁port 25,我看的网路教学说465,587 port没锁 所以我都用port 587做实验 以下是我的步骤: 1. 安装sendmail sudo apt-get install sendmail 2. 变更/etc/mail/sendmail.mc,改用submission (587 port) DAEMON_OPTIONS(`Family=inet, Name=MSP-v4, Port=submission, M=Ea, Addr=0.0.0.0')dnl 3.重新产生sendmail.cf 并重启sendmail sudo m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf sudo service sendmail restart 4. 测试传送一个mail echo "Subject: sendmail test" | sendmail -v [email protected] 5. 获得错误讯息 [email protected]... Connecting to [127.0.0.1] via relay... [email protected]... Deferred: Connection refused by [127.0.0.1] 6. 查看/var/log/mail.log 错误讯息 Mar 24 07:20:03 ip sm-msp-queue[6638]: : [email protected], ctladdr=nash777 (1001/1001), delay=1+00:46:16, xdelay=00:00:00, mailer=relay, pri=8760023, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1] 看起来我是被我自己拒绝了，也不知道怎麽解决，我查看了网路教学 看了/etc/hosts 里面 我只有单纯的 127.0.0.1 localhost netstat -plnt 查看sendmail的port 也确认是587 port 请问有解法吗?不知道我自己有错误在哪边?或其他可以试的办法? 我已经向AWS申请解除限制了，但我看网路上人家说可以用587 port --

※ 发信站: 批踢踢实业坊(ptt.cc), 来自: 36.229.206.9 (台湾) ※ 文章网址: https://webptt.com/cn.aspx?n=bbs/Linux/M.1585035186.A.236.html