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On 7/12/11 11:27 AM, Mikael Bak wrote:
<blockquote cite="mid:4E1C67D3.4060807@t-online.hu" type="cite">
<pre wrap="">Lars Jørgensen wrote:
</pre>
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="">This is not exactly what you asked for, but it solved the backscatter
problems for our users:
</pre>
</blockquote>
<pre wrap="">
</pre>
</blockquote>
</blockquote>
take it out of master.cf, put this in main.cf:<br>
<br>
check_sender_access pcre:$postfix/checkbs.rc<br>
<br>
in checkbs.rc:<br>
<br>
/^(<>$|postmaster@|MAILER-DAEMON)/ reject_rbl_client
ips.backscatterer.org<br>
<br>
this only checks bounces.<br>
be aware, that lusers at microsoft live programmed their password
check/reset email to look like a bounce, and, ms live has been on
bs.org for some time, due to current issues.<br>
<br>
<br>
<br>
<blockquote cite="mid:4E1C67D3.4060807@t-online.hu" type="cite">
<blockquote type="cite">
<pre wrap=""></pre>
<blockquote type="cite">
<pre wrap=""><a class="moz-txt-link-freetext" href="http://www.backscatterer.org/">http://www.backscatterer.org/</a>
</pre>
</blockquote>
<pre wrap="">
That looks interesting, however if I put this in master.cf:
smtp inet n - n - - smtpd
-o content_filter=amavisfeed:[127.0.0.1]:10024
-o smtpd_recipient_restrictions=check_sender_access dbm:/etc/postfix/check_backscatterer
I get this:
postfix/smtpd[22684]: fatal: parameter "smtpd_recipient_restrictions": specify at least one working instance of: check_relay_domains, reject_unauth_destination, reject, defer or defer_if_permit
It seems I am missing something? I know this question probably belong to the backscatterer.org people, but as you know of it, maybe you can be of assistance.
</pre>
</blockquote>
<pre wrap="">
Hi Lars,
For me it seems a bit strange to have this on the master.cf. But I have
no idea how your configuration is like.
I have it in my main.cf together with all other restriction classes.
HTH,
Mikael
</pre>
</blockquote>
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