about linux mail command. (can not get undelivered message)
 

"mail -s test root@baddomain.net < /tmp/test.in" (/tmp/test.in is a text file which has mail contents)

It is a bad address, but I can not get undeliverd message


please help solving,

thanks, firstly.

did you checked /var/mail/mail.log. ?? what is says?? may be delivered??

sorry for can not find this file. (and the other machine, which works well, is also no this file).

I am trying another machines (which can work well) to analyze this issue.

Welcome additional replies.

thanks.

: )

after reinstall OS with choosing everything, it is OK (can work well).

but I truly do not know, why it is.

and now, I can continue for my main work, and left this issue for us to discus.

welcome any member to giving suggestions (I have another machine, which also can repeat this issue).

: )

The logfile you should look for, is /var/log/maillog (or /var/log/mail.log depending on distro)

ok, yes it is.

after analyzing, I fixed: it need use IP address through DHCP. If hard code IP address, it can not.