On 11/11/2010 4:45 PM, Noel Jones wrote:
On 11/11/2010 3:24 PM, John Hinton wrote:
I am new to Postfix. Sorry :(

This is a hosting server and I am having problems with only
some users sending email and only from what appears to be
certain ISPs. The one I'm working on at the moment is rr.com

First, I can set up an email account for this same user and
send just fine. I am not on rr.com. It looks like maybe I'm
having the same issue with myvzw.com.

You can see that I am also running amavisd-new. I do have a
subscription to Spamhaus, but am not pulling in the PBL data.

 From my logs, I get this (with only the actual domains
changed to protect the innocent)

Nov 11 13:49:11 orion postfix/smtpd[7737]: NOQUEUE: reject:
RCPT from rrcs-96-11-199-15.central.biz.rr.com[96.11.199.15]:
554 5.7.1 <webmas...@ew3d.com>: Relay access denied;
from=<i...@example.com> to=<webmas...@ew3d.com> proto=ESMTP
helo=<PCName>

The client was rejected by reject_unauth_destination; it's neither a member of mynetworks nor did they provide AUTH credentials.

message_size_limit = 0

Not a good idea. Put some kind of limit; even insanely large is better than no limit.


smtpd_client_restrictions = reject_rbl_client sbl.dnsbl,
reject_rbl_client xbl.dnsbl

You should proceed your RBL checks with "permit_sasl_authenticated" so that authorized clients aren't rejected just because they are on some RBL.


smtpd_recipient_restrictions =
permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination

OK.


  -- Noel Jones

Thank you all. How embarrassing. Turns out this is just a "stupid Outlook not accepting settings" problem. We will delete and recreate the account if needed.

Also, thanks so much for the tuning tips! I guess I wasn't so far off for doing it on my own. I'm really good with Sendmail, but the learning curve with Postfix is a bit steep (yes, and it was with Sendmail as well). Mostly 'learning' what the logs are saying is the tough part. Very different animals.

Now, off to 'tweak' my conf.

--
John Hinton


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