this post was submitted on 13 Jul 2024
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I'm going to add "bullshit" to the first. I've gone 2 decades running a few email domains on my home servers, on 3 different ISPs. Its not rocket surgery.
All the ISPs I've used block the relevant ports.
I've been running one with a dozen or more users on bare metal at home for the last two years. A little bit of spam but otherwise fine. No deliverability issues or anything.
Same here. Static IP though. I did set up another experiment with a haproxy vps just to see if I could do it if I lost my static IP, worked perfectly done that way too.
Fail2ban, pfblocker, and soamassassin work great.
My sending got blocked from dynamic IPs, maybe things have changed though