On Wed, Mar 29, 2017 at 12:32 PM, AYAN KUMAR HALDER <ayankumarh@xxxxxxxxx> wrote: > Hi, > > I am trying to send a mail using mutt. I am getting the error as follows :- > > SMTP session failed: 501 5.5.4 > > I understand the error meant that a valid mail transaction protocol > was used with invalid arguments. Please let me know how do I debug > this issue further. Mutt usually invokes some other program to send mail -- on my workstation, for instance, that other program is /usr/sbin/sendmail: [jim@krebstar ~]$ mutt -v | grep '^SENDMAIL' SENDMAIL="/usr/sbin/sendmail" so to debug a similar problem on my workstation I'd first look to see where sendmail (or whatever program your mutt installation uses) logs its messages. That used to be in /var/log/maillog or such; nowadays you might have to run journalctl instead. For example, if I try mutt postmaster@xxxxxxxxxxx </dev/null on my workstation, then journalctl | grep sendmail tells me Mar 29 12:59:06 krebstar.arl.arizona.edu sendmail[27263]: v2TJx61J027263: to=postmaster@xxxxxxxxxxx, ctladdr=jim (1000/1000), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30294, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1] which reminds me I don't actually have the sendmail service running. -- Jim _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
