Of course it is. I've been doing it since 2001 or so. It isn't as easy as it should be, but it isn't that hard, either. I had problems with mail acceptance onl

Of course it is. I've been doing it since 2001 or so. It isn't as easy as it should be, but it isn't that hard, either. I had problems with mail acceptance only once, when one of my ISPs got me an IP address that was either used by a spammer in the past, or was in the same subnet that the spammers used. Other than that, no problems over the past 15 years, and I switched providers and systems at least three times over that time. I'd encourage everyone to go ahead and do it. It isn't very hard, cost on the order of several dollars/euros a month, and you finally own your E-mail. I find it appalling that most people either use company E-mail (it isn't yours, anyone can read it, and if you part ways with the company you have a problem) or Google Gmail (Google does read it, trains its algorithms on it, and targets advertising based on that). Don't worry too much about DKIM. It is no longer a good signal anyway, most spam gets it right. So, if you're capable of it, go ahead and run your own mail server. I wish more people did it, so that we could avoid the "big guys" restricting E-mail. If more individuals ran their own servers, we could democratize E-mail again: it wouldn't be that easy to just reject E-mail for no good reason. For the reference, the software I use right now is: Ubuntu LTS, postfix, postgrey, amavis, dovecot. I rent a virtual server at Hetzner.de.