On Tue, Aug 9, 2011 at 10:38 AM, Ralf Hildebrandt <ralf.hildebra...@charite.de> wrote: > * Amira Othman <a.oth...@cairosource.com>: >> Hi all >> >> I want to send mails to all users I have in my database and I am using >> postfix-2.3.3-2.3.el5_6. I am afraid that ISPs consider me spammer and add >> me to black list.Any one can suggest to me where to start to send mass mails >> and how to be protected from being considered spammer at ISP > > Your ISP would be a start.
+1 In all seriousness, don't do this yourself. Engage an ESP like mailchimp etc. What you're describing sounds terribly spammy. A good/reputable ESP will either take your business if what you're trying to do is on the up-and-up (and do it well for you) or you'll fail their sniff test and that's a pretty good indicator that what you're trying to do won't be very successful.
