Greetings, Mayhem!

> The reason why I even suggested this is that I don't see a lot different IP
> addresses. I figured the Postfix system wouldn't need to cache that many
> "bad" IP addresses. You guys obviously see differently.

> My mail logs rotate at 12AM every night, this is just one IP address in 8.5
> hours :

> $ more /var/log/maillog | grep -c 'CONNECT from \[103\.129\.47\.19\]' 
> 1004

> That's just *one* IP address attempting to deliver spam 1000+ times. Isn't
> it a waste of the DNSBL resources telling me 1000 times in 8 hours that this
> IP address is up to no good?

And you don't have local caching DNS proxy?

> That's why it would be nice to blacklist the offending IP address for 24-48
> hours and keep resources free for legitimate connections. 

Are you receiving more than 10k connections per second?


-- 
With best regards,
Andrey Repin
Tuesday, March 5, 2019 20:54:45

Sorry for my terrible english...

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