I'm not specifically familiar with Horcrux, but whether you need a distinct tool for email backup is dependent on your own specific circumstances. If you use TimeMachine on a Mac running MailMate, you have backups of all your email in the MailMate message cache: ~/Library/Application Support/MailMate/Messages/IMAP, which has subdirectories for each account with directory trees mimicking your server-side IMAP folder structure. If you need to restore email, you can restore whatever messages you need from there in TimeMachine to a different folder and then use MM's File->Import Messages... command to restore them and upload them to your IMAP server.
If you have a very large number of messages and use TimeMachine over a network, backing up that cache with TimeMachine can be painfully slow and one may decide not to bother backing it up, since it is a replica of what is on your IMAP server. Because MM deems the IMAP server as always the authoritative source of truth about your email, so in the event of some catastrophic deletion event on the server, MM would dutifully delete the messages in its cache. So not having any backup is a bad idea. If TimeMachine is too slow for you or if you need a different retention pattern, maybe something like Horcrux will work better. Other people here have said good things about EagleFiler (https://c-command.com/eaglefiler/) but I also can't speak to that tool specifically.
-- Bill Cole [email protected] or [email protected] (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire _______________________________________________ mailmate mailing list [email protected] https://lists.freron.com/listinfo/mailmate
