Nevermind that, the problem is back. Changing names and IPs to protect the, mmmh..., me, this is my config:
# grep -R "example.com" /etc/courier/* Binary file /etc/courier/aliases.dat matches /etc/courier/defaultdomain:mozart.example.com /etc/courier/dsnfrom:[EMAIL PROTECTED] Binary file /etc/courier/esmtpacceptmailfor.dat matches /etc/courier/esmtpacceptmailfor.dir/webadmin:bach.example.com /etc/courier/esmtpacceptmailfor.dir/webadmin:mozart.example.com /etc/courier/esmtpacceptmailfor.dir/webadmin:example.com and when I try to send emails to those three domains in that server (which is mozart) I get the following: $ telnet mozart.example.com 25 Trying 1.1.1.1... Connected to mozart.example.com. Escape character is '^]'. 220 mozart ESMTP helo mozart.example.com 250 mozart Ok. mail from: <[EMAIL PROTECTED]> 250 Ok. rcpt to: <[EMAIL PROTECTED]> 556 Address unavailable. rcpt to: <[EMAIL PROTECTED]> 250 Ok. rcpt to: <[EMAIL PROTECTED]> 250 Ok. That is, [EMAIL PROTECTED] gives me the 556 Address unavailable, but not the other two. The logs show this: Nov 13 02:26:01 mozart courieresmtpd: started,ip=[::ffff:2.2.2.2] Nov 13 02:26:37 mozart courieresmtpd: error,relay=::ffff:2.2.2.2,from=<[EMAIL PROTECTED]>,to=<[EMAIL PROTECTED]>: 556 Address unavailable. Any ideas? Just in case it has anything to do, the other server, bach, gladly receives mail for the three domains, example.com, bach.example.com and mozart.example.com; but as they are local domains, the mail is just delivered. On Thu, 2008-11-13 at 07:05 +0000, J. Pablo" Fernández wrote: > Hello Marcus, > > Thanks from the information, as I plan to use some Python scripts > latter; but for now, I don't have any Python script. I didn't notice any > errors prior to that one, but I did the experiment again to gather the > logs exactly as they were and, to my surprise, it just worked. I'm > puzzled, not only that started to work, but the main mailserver is > claiming "relly denied" for mails sent to its own name. > > Thanks. > > On Thu, 2008-11-13 at 00:11 +0100, Marcus Ilgner wrote: > > Hi, > > > > On Wed, Nov 12, 2008 at 9:37 PM, J. Pablo Fernández <[EMAIL PROTECTED]> > > wrote: > > > Hello. > > > > > > I've configured a courier to receive email for another courier as a > > > backup. When testing it I get the error: > > > 556 Address unavailable. > > > What does the error mean here? > > > > > > Does courier perform some kind of DNS check for the MX records (that is > > > not set yet)? > > > -- > > > J. Pablo Fernández <[EMAIL PROTECTED]> http://pupeno.com > > > > > > > incidentally I stumpled upon the same problem today, too. Check for > > backscatter suppression, i.e. if there was another error before this > > one. > > > > In my case I found that the dialback module in pythonfilter was having > > problems with receiving mails being relayed from my backup MX. > > Had to disable it for now. In case anybody has seen this message > > before, it was: 400 SMTP class exception during connect > > > > I took a cursory glance at the source code I found that it splits the > > source address into user and domain and then tries to connect to the > > MX of the resulting domain. > > Quite straightforward, really. Yet, in my case, it looks like every > > mail coming in from my backup MX produced the aforementioned error > > message while every mail being received directly came through without > > problems. > > Row 250 in dialback.py was the only place where I found this error > > message referenced. Any hints? > > And I better mention that sending mail from this server and IP works > > fine, too, so it's not the firewall blocking outgoing SMTP. > > > > Best regards > > Marcus > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ courier-users mailing list > [email protected] Unsubscribe: > https://lists.sourceforge.net/lists/listinfo/courier-users -- J. Pablo Fernández <[EMAIL PROTECTED]> http://pupeno.com
signature.asc
Description: This is a digitally signed message part
------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
