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I have a pi and want to have a mail server for myself and my small team of 5 devs. Initially I setup sendmail to send mails from this server, but now I wish to receive and access mails as well (via IMAP). I do not expect a full fledged how-to for this, since from what I've understood, setting up such a thing involves,
- Knowledge of setting up web-servers (for listening for incoming mails)
- Access rights management (to limit only registered users to access their mails)
- Setting up DNS MX records
I already have good experience in all of the above, but what I'm not coming to grasp is, how do I take all this knowledge and setup my own IMAP enabled email server.
I would first check to make sure your ISP doesn't block incoming connections on port 25 or any other mail-related ports. If they do, there's no point in trying to continue unless you can convince them to give you access. – TheWanderer – 2016-07-03T12:38:18.500
IMAP runs on 445 or 993 for secure IMAP. Get an IMAP server like dovecot and configure it. Dovecot will optionally listen on either or both ports. – cybernard – 2016-07-03T16:27:14.213
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