On 12/14/2009 10:46 AM, Noel Jones wrote: > On 12/14/2009 8:22 AM, Brian Evans - Postfix List wrote: >> On 12/14/2009 3:04 AM, Søren Schimkat wrote: >>> Hi guys >>> >>> This is kinda hard to explain - but I wil try. :-) >>> >>> I have a postfix / cyrus / amavisd-new setup, which works quite >>> allright, but due to some wierd problem, I'm receiving mail for >>> non-existing subdomains. One of my domains are streetclassics.net, but >>> the server is also accepting mail for *...@www.streetclassics.net from >>> spammers, causing bounces to fake senders. I guess that you can see >>> that this is pretty annoying. :-) >>> >>> How can I tell Postfix to just reject mails for non-existing >>> subdomains at the gate - instead of letting them in? >>> >> >> Please read >> http://www.postfix.org/postconf.5.html#parent_domain_matches_subdomains >> Then, you may like to set 'parent_domain_matches_subdomains = ' >> This changes behavior across the instance, it cannot be for a single >> domain. >> > > Likely setting in main.cf > relay_domains = > will fix the problem. > > If not, OP can try reject_unknown_recipient_domain. > > -- Noel Jones >
While this may have some impact, I had the same issue as the OP even with relay_domains removed. You may have missed that the OP's domain in question is listed in mydestination. (main.cf vs 'postconf -n' noise) Without a parent_domain_matches_subdomains change, at least for mydestination, www.example.net will match example.net when example.net is listed in mydestination.
