Postfix + Courier IMAP local email problems
Ron
rg.lists at rzweb.com
Fri Apr 13 03:28:41 UTC 2012
On 12.04.2012 13:54, Robert Bonomi wrote:
>> From owner-freebsd-questions at freebsd.org Thu Apr 12 15:09:43 2012
>> Date: Thu, 12 Apr 2012 13:01:10 -0700
>> From: Ron <rg.lists at rzweb.com>
>> To: <freebsd-questions at freebsd.org>
>> Subject: Postfix + Courier IMAP local email problems
>>
>> I'm having a couple of issues with postfix and courier-imap on my
>> new
>> machine and I'm trying to figure out what is different from my old
>> machine. I've checked every config file I think of and they both
>> seem
>> to be set up the same.
>>
>> Here are the two issues:
>>
>> If I send email from a local user (while SSH'd in using the command
>> line mail) to another local user (mail todd at mysite.com) on the same
>> machine, but using the full email address, I get the following error
>> and
>> the email bounced back:
>>
>> 553 5.3.5 mail.mysite.com. config error: mail loops back to me (MX
>> problem?)
>> 554 5.3.5 Local configuration error
>
> this is a 'well known' problem.
>>
>> The only thing I can think of is that mysite.com and mail.mysite.com
>> (the mx record) do not point to the same server (which they did on
>> my
>> old machine).
>
> it's not that sample. <grin>
>
>> I have also tried everything I can think of in how
>> users
>> are listed in postfix's virtual file and in /etc/aliases and server
>> entries in main.cf.
>
> The problem is that the 'local' machine DOES NOT KNOW that it is
> supposed
> to accept mail for the domain specified in the email addressz.
>
> The server looks at the address, determines that it is *NOT* local,
> by whatever means 'postfix' uses to make that determination (it's the
> 'w' class in Sendmail), and goes off to query DNS for the MX for the
> 'remote' machine to send mail to. DNS returns "this" (the one asking
> for
> the 'remote' machine name) machine as the destination to deliver to.
> the local server =knows= that is incorrect, because it is not the
> delivery
> point for that domain. hence the error message, and 'return to
> sender'
> as undeliverable.
>
> This _is_ a configuration error in (probably) the local mailserver,
> or in
> the way the local hostname/domainname are set up..
>
I guess the question is: What is the configuration error?
I've tried setting:
mydestination = mysite.com, mail.mysite.com
and it has no affect. The main.cf on my new machine is exactly the
same as the main.cf on my old machine except for:
virtual_alias_domains = mysite.com, mail.mysite.com
which contains the domain of my new machine.
master.cf is also identical.
Is there a verbose mode I can put postfix into to see that the issue
is?
It should also be noted that mysite.com is a postfix virtual domain.
This was true of my old machine as well, but I don't know if that
matters. Sending email to todd at myserver.net produces the same MX error.
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