[Feature Request]: Delete After x Days based on from/to/subject

[PhAnt0mFS]

Feature Description

First of all, thank you so much for this fantastic application!

I receive a lot of mails that I do want to keep but only for a short period of time.
Like newsletters, calendar invites and monitoring system status.

There are also (by default) mail I would like to keep forever.

Proposed Solution

Would be nice to have a global or account based "cleanup" feature to set a delete after x days for only e-mail with a specific subject, from or to.

Does not have to be directly at the moment when the mail expires, but can also be once a day during the night like a maintenance job.
This can also reflect in the logging as a cleanup job removed x amount of mail.

[mmcgn]

Sounds good.
I'd extend this to a selection of criteria, like subject and sender, or similar.