Le 25/01/2011 15:25, Bissio2000 a écrit : > 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? >
the short answer is: use an ESP. these guys know how to get your email delivered (it is part of their job to get good relationships with large mail providers, and they are supposed to know which practice is good...etc). if you can't afford the costs of an ESP, maybe you'll afford the costs of telling us the IP you're talking about and your postfix configuration (as well as your hostname since this is the default helo name). if you don't want to send this info publicly (IP and helo name), contact me offlist.
