Is Maddy's IMAP+object storage setup mature now? Last time I tried it I was testing against minio and trying to get my 25gb inbox synced over. The transfer was in b/s, would've taken forever. I love the project but haven't checked in on it for over a year now.
I use IMAP+on-disk SQLite, and make sure to take backups, I haven't run it purely off of object storage yet so can't comment on whether it's better with such a large inbox!
I use maddy + dovecot. maddy's IMAP implementation is good for small stuff (and trivial to set up!), but still performs very slow for few-GB inboxes or larger.
