• psud
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    2 months ago

    Linux + postfix (SMTP) + dovecot (IMAP and POP3) + SPF + DKIM on the host

    Point the MX record for your domain to your IP address

    Contact your ISP and ask them to set the PTR record for your IP to your hostname

    Mail can be handled by a very low end computer, a raspberry pi can handle email for a small number of users

    If you have a specific mail machine you would forward the ports you use to that host on your router.