I have a raspberry pi running postfix. I Realised unless I open port 25 I absolutely cannot receive emails (I have 587 open and can send but not receive them). However I heard there are scaries online which someone could potentially send emails from your server without consent. I believe as well my ISP doesn’t block port 25. Is there anything I should do right now before opening port 25, or should everything be safe enough?

  • FlaxOPEnglish
    2•1 year ago

    How can I have reliable email that I can control, then?

    • FalseMyrmidon
      15•1 year ago

      Buy your own domain name and put it in front of someone else’s service. This is going to be a ton of work to do correctly and you’re unlikely to be able to host it out of your house.

      Also, something you’re running off a Raspberry Pi in your house is not going to meet most definitions of ‘reliable’.

        • FalseMyrmidon
          2•1 year ago

          Personally I’d probably go with MS hosted exchange or a Google business account. If you don’t trust those entities I’ve heard good things about ProtonMail - I imagine they have some kind of business solution.

        • @bastion@feddit.nlEnglish
          1•1 year ago

          Mango mail, porkbun, proton mail

          Each does a slightly different niche.

          Mango is cheap, but limits outbound mail. Porkbun has a good all-around mail service, bit is a little more costly. Proton is very secure, but can be inconvenient for export (though it can be done, it requires purchase of a month of business service to export away from them).