this post was submitted on 22 Apr 2024
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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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[–] [email protected] 16 points 1 year ago (2 children)

friends dont let friends host email. its just become too top heavy (complexity-wise) if you want it to be fully functional and secure.

[–] [email protected] 2 points 1 year ago (2 children)

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

[–] [email protected] 14 points 1 year ago (1 children)

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'.

[–] [email protected] 10 points 1 year ago

If you own your domain name, then you can use any email service and still have control over it and move around if needed.

[–] [email protected] -1 points 1 year ago* (last edited 1 year ago)

100% agreed. It's well worth outsourcing to someone else for $10/mo versus the amount of work it takes to do it well unless you're a large business.

I'd make this argument for DNS too - a lot of work for how easy it is to pay someone else to handle it.