Hjælpsom DSN

[Mortal]

Når man sender til en lang liste af aliaser plusset sammen og laver en trykfejl i én af aliaserne, så får man et svar tilbage der ikke er nemt at tyde.

Mailsystemet burde lave en mere hjælpsom fejlmelding når nogle, men ikke alle, aliaser i en plus-liste er ugyldige.

Eksempel på nuværende fejlmelding. Det meste af fejlmeldingen er genereret af Postfix på pulerau, men strengen "550 Requested action not taken: mailbox unavailable" er defineret i mailsystemet.

This is the mail system at host pulerau.scitechtinget.dk.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                  The mail system

<FUSE@taagekammeret.dk>: host 127.0.0.1[127.0.0.1] said: 550 Requested action
   not taken: mailbox unavailable (in reply to end of DATA command)

<FUUS+OCERM+FUGR+FUMY+OKASS+FUET+OFORM+FUAX+FUNK+FUBI+OSEKR+FUST+GFUAN+FUNL+FURT+FULO+FUZU+FORM+VC+INKA+FUTN+FUON+FUIL+FUHN@taagekammeret.dk>:
   host 127.0.0.1[127.0.0.1] said: 550 Requested action not taken: mailbox
   unavailable (in reply to end of DATA command)

<OCERM@taagekammeret.dk>: host 127.0.0.1[127.0.0.1] said: 550 Requested action
   not taken: mailbox unavailable (in reply to end of DATA command)
Reporting-MTA: dns; pulerau.scitechtinget.dk
X-Postfix-Queue-ID: 2EC06112E80A5
X-Postfix-Sender: rfc822; williamkrill1@gmail.com
Arrival-Date: Thu, 15 Jun 2017 17:12:28 +0200 (CEST)

Final-Recipient: rfc822; FUSE@taagekammeret.dk
Original-Recipient: rfc822;FUSE@taagekammeret.dk
Action: failed
Status: 5.0.0
Remote-MTA: dns; 127.0.0.1
Diagnostic-Code: smtp; 550 Requested action not taken: mailbox unavailable

Final-Recipient: rfc822; FUUS+OCERM+FUGR+FUMY+OKASS+FUET+OFORM+FUAX+FUNK+FUBI+OSEKR+FUST+GFUAN+FUNL+FURT+FULO+FUZU+FORM+VC+INKA+FUTN+FUON+FUIL+FUHN@taagekammeret.dk
Original-Recipient: rfc822;FUUS+OCERM+FUGR+FUMY+OKASS+FUET+OFORM+FUAX+FUNK+FUBI+OSEKR+FUST+GFUAN+FUNL+FURT+FULO+FUZU+FORM+VC+INKA+FUTN+FUON+FUIL+FUHN@taagekammeret.dk
Action: failed
Status: 5.0.0
Remote-MTA: dns; 127.0.0.1
Diagnostic-Code: smtp; 550 Requested action not taken: mailbox unavailable

Final-Recipient: rfc822; OCERM@taagekammeret.dk
Original-Recipient: rfc822;OCERM@taagekammeret.dk
Action: failed
Status: 5.0.0
Remote-MTA: dns; 127.0.0.1
Diagnostic-Code: smtp; 550 Requested action not taken: mailbox unavailable