We are using RHEL 6.1 server. We need to send a mail from server to local domain (tcs.com). we are using mail command for this purpose.
[bsoauser@hsluabsoa ~]$ echo "hi" | mail -s "test" email@example.com [bsoauser@hsluabsoa ~]$
command is working but we are not getting mails.In /var/log/maillog we found the following error:
Nov 7 15:58:05 hsluabsoa postfix/local: 02A86FAB: to=<firstname.lastname@example.org>, relay=local, delay=0.51, delays=0.1/0.35/0/0.06, dsn=5.1.1, status=bounced (unknown user: "abc.d")