[account42]

> 1. Being plagued by spam,

An overstated problem IMO. Even just Thunderbird's client-side filtering works well enough to mostly ignore it and just occasionally go sweep through the spam folder to see if anything was caught inadvertantly. If you run your own server you can also setup whatever spam filter you want but personally I care more about real people being able to contact me than I care about never seing any spam (subjects only, pretty easy to tell what is worth openingn from subject + sender).

> 2. Being considered spam by major mail services (where most of one’s recipients will usually reside)?

Which may or may not be a problem for a personal mail server. Personally I have never had any problem with Gmail (YMMV) which at this point covers pretty much everyone I know who doesn't run their own server. Microsoft doesn't like my server due to others on the same block but so far I have decided that's not my problem.