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[Discuss] Thunderbird not connecting to Comcast IMAP server
- Subject: [Discuss] Thunderbird not connecting to Comcast IMAP server
- From: worley at alum.mit.edu (Dale R. Worley)
- Date: Wed, 09 Oct 2019 22:07:18 -0400
- In-reply-to: <mailman.1.1570636803.19107.discuss@blu.org> (discuss-request@blu.org)
discuss-request at blu.org writes: > From: epp at vivaldi.net > > Beginning this past Monday, Thunderbird and the SeaMonkey suite (on > Fedora 30) mysteriously stopped connecting to Comcast's IMAP mail > server. The obvious attacks are: Attempt to connect to the IMAP server manually and execute the login sequence and some simple list-messages command. I have forgotten how IMAP works, but presumably there is a standard utility that lets you start a session from the keyboard. More easily, it looks like fetchmail can be configured to fetch from an IMAP server. If you give it --keep, the messages won't be deleted from the server after they are fetched, and --fetchlimit can be used to limit it to operating on one message. Do a network trace (wireshark) of the connection between Thunderbird and the IMAP server. Since the connection is likely encrypted, this won't tell you a lot, but you will be able to confirm or deny whether the TCP connection gets established. Dale
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