IMAPFilter config to archive old mails to folders based on sender addresses

Install imapfilter e.g. via apt install imapfilter.
Copy config.lua.example to config.lua and adapt it to your needs.
Run imapfilter.sh.

Imported:

• lua/base64.lua from https://github.com/iskolbin/lbase64/blob/master/base64.lua: Unknown license
• lua/match_utf8_field.lua from https://paste.sr.ht/~cybolic/902986c795599f558165c63bcb65a3d4ae15881e, referenced in lefcha/imapfilter#127: Unknown license

All remaining files: Apache License 2.0