I'd like to propose the option to add a spam score base on the Top Level Domain of de reverse-DNS of the sender.
Lately more and more spam (and phishing) seems to arriving from non-botnet spammers who go through the effort of setting up servers with functional but disposable reverse-DNS records, eluding higher spam scores.
For example: host01.leadorrin.club [103.136.40.58], radlionay.xyz [185.53.170.106], etc.
Especially the .xyz TLDs seems to be very popular lately.
I'd like to have the option to add say 5 points to the score if the RDNS TLD matches .xyz or other specified TLDs.
Score by RDNS TLD
Re: Score by RDNS TLD
Hi,
why don't you write your own rules instead ?
https://taborsky.cz/posts/2020/penalizi ... massassin/
https://gist.github.com/zhiephie/def673 ... d9b5a557a4
why don't you write your own rules instead ?
https://taborsky.cz/posts/2020/penalizi ... massassin/
https://gist.github.com/zhiephie/def673 ... d9b5a557a4
Re: Score by RDNS TLD
Both posts describe adding filters based on the 'from' email address, not the TLD of the sender's reverse-DNS.
Writing your own rules is nice if you have the time, skill and documentation needed available to you.
I'd love to spend the next two weeks acquiring those but I gather my boss won't be too happy.
Writing your own rules is nice if you have the time, skill and documentation needed available to you.
I'd love to spend the next two weeks acquiring those but I gather my boss won't be too happy.
Re: Score by RDNS TLD
Aha, okay.
You will add a score, if the RDNS check points to a unwanted domain like .xyz ?
You will add a score, if the RDNS check points to a unwanted domain like .xyz ?
Re: Score by RDNS TLD
That's the idea.
I'm not sure of spamassasin does anything with reverse-DNS other than to check if one exists.
I'm not sure of spamassasin does anything with reverse-DNS other than to check if one exists.