I was wondering how practical it would be to run my own email server at home, I’ve set up servers before and know how to forward ports and such. Would it be possible to do it on an rpi 4 and do you guys have recommendations on any free software for setting up an email server. Thanks!
Sadly not very practical due to excessive spam filtering by gmail & outlook etc.
Setting on up is possible if your ISP does not block the ports (not uncommon as spam prevention), but you will likely not be able to set up rDNS and some other things that are needed to prevent other email servers from flagging messages as spam.