Dave wrote:
Hello,
Thanks. The mail is rejected, but it's generating bounce messages,
whereas mail to unknown users that smtpd rejects doesn't get queued at all,
mail addressed to mailman seems to start through the queue rather than be
initially rejected.
Thanks.
Dave.
Please don't top post.
Please press the [Plain Text] button when posting from gmail.
Aug 16 04:41:31 <HOSTNAME> postfix/smtpd[26093]: NOQUEUE: reject: RCPT from
unknown[188.18.105.39]: 554 5.1.1 <[email protected]>: Recipient
address rejected: undeliverable address: unknown user:
"[email protected]"; from=<[email protected]>
to=<[email protected]> proto=SMTP helo=<example.com>
This mail was submitted via SMTP, and was rejected during the
SMTP transaction.
Aug 11 18:10:01 <Hostname> postfix/pickup[24191]: D15935840004: uid=41
from=<mailman>
This mail was submitted via sendmail(1). Postfix doesn't have
a chance to evaluate it until delivery, so it gets bounced.
Aug 11 18:10:28 <Hostname> postfix/smtpd[5186]: connect from
<Hostname>.example.com[127.0.0.1]
Aug 11 18:10:28 <Hostname> postfix/smtpd[5186]: 66B3B5840006:
client=<Hostname>.example.com[127.0.0.1]
This mail was submitted from localhost, which you have
exempted from unknown recipient checks by permit_mynetworks.
If you want to enforce unknown recipient checks for local
users, list "reject_unlisted_recipient" before
"permit_mynetworks", but be aware some user mail programs
react badly to having submissions rejected.
-- Noel Jones
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Sahil Tandon
Sent: Sunday, August 16, 2009 5:02 PM
To: [email protected]
Subject: Re: postfix not rejecting single nonexistent user
On Sun, 16 Aug 2009, Dave wrote:
I have two domains on this machine, one example.com that is a
virtual
mailbox domain holds all users, the other a local domain in
mydestination called lists.example.com a subdomain is for mailman use.
From what i'm seeing in these logs i do not believe lists.example.com
is coming in to play either.
For all nonexistent users smtpd rejects them:
Aug 16 04:41:30 <HOSTNAME> postfix/smtpd[26093]: connect from
unknown[188.18.105.39] Aug 16 04:41:31 <HOSTNAME>
postfix/smtpd[26093]: NOQUEUE: reject: RCPT from
unknown[188.18.105.39]: 554 5.1.1 <[email protected]>: Recipient
address rejected: undeliverable address: unknown user:
"[email protected]"; from=<[email protected]>
to=<[email protected]> proto=SMTP helo=<example.com> Aug 16
04:41:31 <HOSTNAME> postfix/cleanup[25790]: 8547A1509002A:
message-id=<[email protected]>
Aug 16 04:41:31 <HOSTNAME> postfix/virtual[25791]: 8547A1509002A:
to=<[email protected]>, relay=virtual, delay=0, delays=0/0/0/0,
dsn=5.1.1, status=undeliverable (unknown user:
"[email protected]") Aug 16 04:41:31 <HOSTNAME>
postfix/smtpd[26093]: disconnect from unknown[188.18.105.39]
the single exception to this is [email protected], which is not a
virtual user in the example.com virtual mailbox domain, but which is
listed in the /etc/passwd file as a user, specifically the user who
runs the mailman software. This user is getting rejected by virtual,
not local as i would expect.
Because you specify 'example.com' in $virtual_mailbox_domains, its valid
recipients are governed by $virtual_mailbox_maps. The /etc/passwd file does
not come into play. Therefore, if [email protected] is not listed in the
aforementioned map, mail addressed to that address is rejected. It seems
everything is working as designed.
--
Sahil Tandon <[email protected]>
