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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?

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[-] FalseMyrmidon@kbin.run 13 points 2 years 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'.

this post was submitted on 22 Apr 2024
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