linux mutt 发送邮件报错

我在服务器上面通过mutt定时发送邮件，之前没问题，后来重启之后遇到这样个问题，163邮箱能够收到我发出去的邮件，但是qq和公司内部邮箱一直收不到邮件，报错如下：
Sep 22 16:00:00 nfsserver sendmail[21865]: r8M800YS021865: from=root, size=4703, class=0, nrcpts=3, msgid=20130922080000.GA21860@nfsserver, relay=root@localhost
Sep 22 16:00:00 nfsserver sendmail[21868]: r8M800Nx021868: liyuheng@cosmo-lady.com... User unknown
Sep 22 16:00:00 nfsserver sendmail[21865]: r8M800YS021865: to=liyuheng@cosmo-lady.com, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=94703, relay=[127.0.0.1] [127.0.0.1], dsn=5.1.1, stat=User unknown
Sep 22 16:00:00 nfsserver sendmail[21868]: r8M800Nx021868: from=root@localhost.localdomain, size=4831, class=0, nrcpts=2, msgid=20130922080000.GA21860@nfsserver, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
Sep 22 16:00:00 nfsserver sendmail[21865]: r8M800YS021865: to=171290828@qq.com,liyuhengmail@163.com, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=94703, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (r8M800Nx021868 Message accepted for delivery)
Sep 22 16:00:00 nfsserver sendmail[21865]: r8M800YS021865: r8M800YT021865: DSN: User unknown
Sep 22 16:00:00 nfsserver sendmail[21868]: r8M800O1021868: from=<>, size=6543, class=0, nrcpts=1, msgid=201309220800.r8M800YT021865@localhost.localdomain, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
Sep 22 16:00:00 nfsserver sendmail[21865]: r8M800YT021865: to=root, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=35727, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (r8M800O1021868 Message accepted for delivery)
Sep 22 16:00:00 nfsserver sendmail[21871]: r8M800O1021868: to=root@localhost.localdomain, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=36761, dsn=2.0.0, stat=Sent
Sep 22 16:00:03 nfsserver sendmail[21870]: r8M800Nx021868: to=liyuhengmail@163.com, ctladdr=root@localhost.localdomain (0/0), delay=00:00:03, xdelay=00:00:03, mailer=esmtp, pri=154831, relay=163mx01.mxmail.netease.com. [54.248.217.80], dsn=2.0.0, stat=Sent (Mail OK queued as mx3,NcCowEBJ+miZoz5SH9TbBg--.472S2 1379836827)
Sep 22 16:00:05 nfsserver sendmail[21870]: r8M800Nx021868: to=171290828@qq.com, ctladdr=root@localhost.localdomain (0/0), delay=00:00:05, xdelay=00:00:02, mailer=esmtp, pri=154831, relay=mx3.qq.com. [112.95.241.138], dsn=5.0.0, stat=Service unavailable
Sep 22 16:00:05 nfsserver sendmail[21870]: r8M800Nx021868: r8M805Nx021870: DSN: Service unavailable
Sep 22 16:00:05 nfsserver sendmail[21870]: r8M805Nx021870: to=root@localhost.localdomain, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=36054, dsn=2.0.0, stat=Sent
You have new mail in /var/spool/mail/root

该回答引用ChatGPT

根据您提供的日志信息，您的邮件无法发送到公司内部邮箱和QQ邮箱，但可以发送到163邮箱。具体来说，错误消息中提到：

这些错误消息提示您应该检查以下内容：

  • 收件人地址是否正确：确认公司内部邮箱的收件人地址是否正确，以及是否有任何拼写错误或其他错误。如果收件人不存在，则邮件无法发送。

  • 邮件服务器设置是否正确：检查您的邮件服务器设置是否正确。确保它们与您的网络环境和邮件服务器的要求相匹配。

  • 邮件服务是否正常：检查邮件服务是否正常运行。您可以尝试手动发送电子邮件，或者检查是否有任何公告或警报表明该服务已暂停或受到干扰。

  • 邮件是否被过滤：有时候，邮件可能被收件人的反垃圾邮件或其他过滤器拦截，这可能会导致邮件被丢弃或延迟到达收件人的收件箱。您可以询问收件人是否已检查他们的反垃圾邮件文件夹或过滤器设置。

希望这些建议可以帮助您解决问题。