Hello there friends, This post help you for Email marketing who wants to send emails rotating their IP's. If you have more then 1 IP blocks, you can try this tip for how to config your server for email marketing. This tips tested and emails sent out rotate IP's. See how to Rotate IP's : http://sitexen.com/threads/5-Rotate-Multiple-IP-s-for-email-marketing?p=5#post5