Hi! I’m trying to install a mail server on my Ubuntu 12.04 droplet, but I honestly don’t know how to do it. Which packages do I need? I’ve been experimenting a bit with postfix, I’m able to send mail to a gmail-address, but not to an email-address hosted at namecheap.com(says something about invalid HELO).
Sorry for being such an amateur, haha. Thanks!
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