I would love to run my mail server self-hosted at home. I have a small N100 box that I would like to dedicate for this purpose.

Needs

  • capability to handle a handful of domains
  • each domain has at least one user (no more than a handful each)
  • the ability for users to have multiple aliases
  • relatively small amounts of email per day total (mostly incoming)

Concerns / Possible Mitigations:

  • residential IP won’t work with SMTP
  • I have a Vultr VPS I could use as a relay between the world and me (IP reports as clean on blacklist checkers [both IPv4 and IPv6])

Questions:

  • Could I set up WireGuard between the home server and VPS then have that handle sending out the email?
  • What software stack would I need? Would this be something like postfix to postfix or…?
  • thaexistentialist@alien.topBEnglish
    1·
    3 years ago

    Here is a guide that I found helpful when setting up my email server: https://workaround.org/ispmail-bookworm/whats-new/

    It allows for multiple aliases and domains. Has spam blocking and uses both postfix and dovecot for handling the mail.

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    Vultr blocks outgoing port 25 so you’ll have to ask support for it to be opened.

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    Test your residential IP by connecting to smtp/imap servers using telnet.