Is there a good SMTP service to send bulk emails (or another good solution for sending bulk emails, using the tools I already have, rather than a service like Mailchimp?) [more inside]
posted by ManInSuit on Jan 16, 2013 - 14 answers

XServe Postfix: How can I disable hostname verification so that mobile users can send mail successfully through my server? [more inside]
posted by odinsdream on Oct 2, 2007 - 6 answers

I believe the mail server associated with my domain name is acting as an open relay. Hosting company claims everything's good. How can I double-check? [more inside]
posted by doctorpiorno on May 15, 2007 - 12 answers

I need to send out bulk emails to an opt-in-only list of over 200,000 people. Can you help me find good software to do this with? [more inside]
posted by afroblanca on Nov 14, 2005 - 14 answers