somehow running your own mailserver never appeared possible for me. First of all, the whole mailserver, webinterface and antispam construction seemed to be too much hassle for me to set up on my own. Secondly the reputation for e-mails sent from an own hosted mailserver used to be pretty bad. I have heard that other mailservers wouldn’t accept these e-mails because, for certain reasons, they where classified as spam. DKIM and DMARC flags where missing. At the Hacking in Parallel Conference in Berlin smart people recommended me the one-stop-shop-solution MailCow: a dockerized e-mail server with everything you that is necessary...
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