Am 25.01.2011 15:25, schrieb Bissio2000: > Hi all, > > we have some problem with our ip reputation on other provider. We are using > our postfix server as delivery server for some mailing lists (about > 5000/8000 users); after a few days the destination providers (as hotmail, or > yahoo) block any message coming from our mta because our IP address is > inserted into their black list (not public black list). Is there a way to > use postfix as mailing list sender without looking as spammer? I mean is > there some setting on main.cf or somewhere to identify my mta server as > secure? > > Thanks > >
normally this has nothing to do with what mail server software you use you should have valid dkim and spf entries for your mail domain and ptr should match forward and best like helo ( if possible ) as well some big mailers have whitelists for mass mail keep track for bounces back and delete bounce users from your adressfile frequently you might should only send in plain text etc try different deliver out rates for different domains be a ware whatever you do there is mostly a report spam feature on big domains, so if enough people find your mail be spam you might always get into filters at big mail providers, or get in rbls etc perhaps look i.e. here http://help.yahoo.com/l/us/yahoo/mail/postmaster/ -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
