We moved our servers to a new data center a couple of weeks ago. New set of static IP's. Ever since then, we have fought with email delivery, we seem to keep getting blocked. I think some of the IP's were on blacklists when we got them. We have spent a ton of time going around and around...
Comcast recently started blocking port 143 for IMAP. I need to know what the directive for the config file is to set up an alternate un-encrypted port for IMAP to listen on, in addition to the existing 143. I don't see a line in the config that even specifies port 143 so it must be a default...
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