Comment by kkfx

So far I've not documented much my setup (but feel free to ask specific questions) I found nice to bookmark:

- https://www.howtoforge.com/procmail_tips_recipes

- https://dnns.no/switching-from-procmail-to-maildrop.html

Who have a little fetchmail part. I've nerve used getmail, before I've used OfflineIMAP (buggy but support IMAP IDLE) and mbsync. The only issue is fetching from multiple accounts that demand firing up multiple instances, but that's not much of an issue. You just set FETCHMAILHOME before any invocation pointing to the right config dir and set a different --pidfile for concurrent* fetching if you wish so. MailDrop is a (very) little (very) big setup since you need filters for anything if you are not a piler and that take MUCH time. Normally here my suggestion is fetch anything on a zfs volume, clone it, test on the cloned maildir or snapshot and revert after any test until you get nothing in the INBOXes. A slow step at a time you'll add the rest.