Marc - You are correct. All the IP sources of this spam, don't a valid
reverse lookup of the IP address, to an IP name. That will solve my
problem. Thanks! - Mark
On 11/9/2023 12:38 PM, Marc wrote:
Do you at least verify the reverse lookup? That already stops a lot of such
networks.
>
> Heck, maybe I should just block the whole country. :)
You have to be careful with this. I think there are 'organisations' that
specifically abuse with the intend to provoke you to have blanket block a
specific region/range.
Unfortunately most of the ip addresses do have reverse lookups.
On the other hand, I do see that some have common domains. So I could
use block by domain using sendmail.
Heck, maybe I should just block the whole country. :)
On 11/9/2023 12:38 PM, Marc wrote:
The spam is coming from many d
>
> The spam is coming from many different IP ranges, with little
> repetition. Most of them are from countries like Afghanistan,
> Kyrgyzstan, Azerbaijan, Kazakhstan, and Uzbekistan. Are these the
> latest sources that spam software is using, because other countries have
> tightened up their s
In the last couple of days, the number of "I RECORDED YOU" spams that my
server has been receiving, has gone way up. Well over a thousand a day.
And the spam is only being sent to about 20 of my users. We had been
receiving these for the last month, but nothing at all like rate it's
now happe
