Ralf Hildebrandt put forth on 1/26/2011 4:32 AM: > * Stan Hoeppner <s...@hardwarefreak.com>: > >> Your problem has nothing to do with Postfix, or any MTA you might use. Most >> of >> the big mailbox providers have bulk sender policies. If you are to send bulk >> mail to their users, you must ensure you meet their guidelines: >> >> http://help.yahoo.com/l/us/yahoo/mail/postmaster/bulkv2.html >> https://mail.google.com/support/bin/answer.py?hl=en&answer=81126 >> http://mail.live.com/mail/postmaster.aspx > > This is of course quite a bit of work, and involves setting up: > > * DKIM > * maybe SPF > * an abuse and postmaster address > > But it can be done; I've done that for python.org and it took me 3 > months (setting everything up, cleaning list, fixing settings) of my > spare time.
Thus the reason I also recommended setting up rate limited delivery to such domains. It may be a "cheaper" solution with similar delivery results and less headaches. It wasn't all that long ago that another OP had the exact same problem, and rate limiting via transport specific smtp clients was suggested as a solution. I don't recall seeing feedback from that OP regarding that solution. In this case I'd say no negative feedback means it's working. -- Stan
