There are a load of guides to setting up email on a server, but many of them don't cover the extra useful features that make hosting your own email a viable experience. If you're going to wean yourself off Gmail, then you need usable webmail, spam filtering, virus protection and all the extras like DKIM signing on outgoing messages. Using Symbiosis + bigv.io, you can set up a mail server with all the above features in just five steps. Symbiosis is free software that already powers thousa...