From my own experience I can tell you that running your own mail server is a massive PITA. There's a good chance that even if you jump through all the required hoops to improve trust for your domain you will still have trouble delivering mail to certain addresses (Hotmail is notoriously hard to get white-listed for).
Then there's spam... don't even get me started on spam filtering. For me personally $50/year is a bargain considering that running, maintaining, patching a mail server is time consuming and has no real upside.
As a learning experience it's fine, but in practice delivering mail (reliably) sucks hard.
Then there's spam... don't even get me started on spam filtering. For me personally $50/year is a bargain considering that running, maintaining, patching a mail server is time consuming and has no real upside.
As a learning experience it's fine, but in practice delivering mail (reliably) sucks hard.