On Tue, Aug 11, 2015 at 11:05:38PM +0200, Alexander Dalloz wrote:
openssl s_client -connect <server ip>:993
You hopefully see a greeting message from the IMAP server. Then issue
I know I'm late to this thread, but a useful tool for testing your Cyrus IMAP service is the 'imtest' command, which is in the cyrus-imapd-utils package.
imtest -v -s <serverip|hostname>
(I used to manage a cyrus murder, a long time ago, and imtest is a great tool for debugging)
However, your issue sounds more like a network-level problem than a IMAPd problem.