Richard G
Verified User
We've never received mail from mailservers having only an ip without a hostname.
Now we see loads of attempts from spammers with helo's like this:
so no hostname at all.
Most of them are rejected after check by an RBL or for getting a high spam score due to not having an rDNS/PTR>
But is there a way so Exim to just refuse all attempts from mailservers without hostname directly at helo/ehlo maybe?
Now we see loads of attempts from spammers with helo's like this:
Code:
H=([161.10.153.201]) [161.10.153.201]Most of them are rejected after check by an RBL or for getting a high spam score due to not having an rDNS/PTR>
But is there a way so Exim to just refuse all attempts from mailservers without hostname directly at helo/ehlo maybe?