Matt Morgan wrote:
OK, I read up some more. Apparently, I'm clueless. I understand now that IMAPS is old-fashioned and the right way to do encrypted imap is IMAP (on port 143) with STARTTLS. Correct? This is new to me and I'm not sure I'm on the right path. Thanks.
Most clients support both, and it would be good if your proxy did as well. I didn't see you mention "Perdition" earlier, so you might want to check that out. It's linked from the imapproxy.org page, and looks like a better, general-purpose IMAP proxy.
http://www.vergenet.net/linux/perdition/