So I have set up my own mail server 🙃 🙂. What an achievement for me 😆😅 And it was working fine till recently. It becomes really, really slow. And I checked the log and found out this. What could I do and what’s the purpose of this? Is it a brute force attack? All these ips are owned by the same person/group?? Any help or pointers will be deeply appreciated
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Yeah that looks a lot like the typical bruteforce attempts from the evil lands of the internet. Fail2ban did the trick for me. Logs are clean now
If there’s one thing I’ve learned over the years about self-hosting it’s that I’ll happily pay to not have to deal with email hosting.
The only “self-hosting” I do for email is to download my own local archive for storage.