9 Apr
2004
9 Apr
'04
1:48 p.m.
Hi,
I'd like to customize the error message sent back to the sender
when a "unknown user" is encountered.
By default sendmail generates something like this:
From: Mail Delivery Subsystem
<MAILER-DAEMON(a)some.domain.lu>
To: <sender(a)some.other.domain>
Subject: Returned mail: see transcript for details
Date: whatever
The original message was received at <date>
from [a.b.c.d]
----- The following addresses had permanent fatal errors -----
<recipient(a)domain.lu>
(reason: 550 recipient(a)domain.lu... No such user)
----- Transcript of session follows -----
... while talking to [b.c.d.e]:
Final-Recipient: RFC822; recipient(a)domain.lu
Action: failed
Status: 5.1.1
Remote-MTA: DNS; [a.b.c.d]
Diagnostic-Code: SMTP; 550 recipient(a)domain.lu ... No such user
Last-Attempt-Date: sometime
So I'd like to customize the message (especially get rid of IP
addresses so as not to reveal topology information of the
internal network).
Does anyone have an idea on how to go about this? Is there some
config file to edit (vi /etc/mail/sendmail.cf anyone? :-)) or
something?
My googling hasn't been very successful so far...
TIA, Eric
>> DATA
<<< 550
recipient(a)domain.lu... No such user
550 5.1.1 <recipient(a)domain.lu>... User unknown
<<< 503 Issue RCPT TO: command before DATA command