imapsync - Console-based utility for migrating IMAP mailboxes.
Listr - Listr lets you explore some of the best lists on Twitter, curated across your favorite categories.
Gmvault - Backup the emails in your Gmail account.
Do You Even List? - Auto updating Twitter list of people you interact with most
Cryoserver - Cryoserver is an all-in-one email archiving solution that empowers you to preserve your email in a tamper-evident archive, making you transform your data into a useful archive for everyday use.
Scrapex Beta - No-code data extraction platform