Spamassassin - blacklist all TLD allow whitelisted TLD?

[ampapa]

First post to the forum... Hello!

I was wondering if it's possible to blacklist all TLD's then whitelist only a few TLD's (.com, .org, .net, etc.).

How would I do that in Cpanel?

Thanks.

ampapa,

 

[cPanelMichael]

Hello,

You may find it easier to implement a custom Exim system filter rule for this purpose. There's a thread on this topic at:

How to block all IP's from certain countries which use .EU extension?

Let us know if this helps.

Thank you.

 

[ampapa]

My interpretation of this is a bit fuzzy... can anyone put this is layman terms for me??

/
.*@.*\.(?!(.*\.)?(com|net|org|int|edu|gov|biz|mil|coop|us))
/
g
.*
matches any character (except for line terminators)
* Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy)
@ matches the character @ literally (case sensitive)
.*
matches any character (except for line terminators)
* Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy)
\. matches the character . literally (case sensitive)
Negative Lookahead (?!(.*\.)?(com|net|org|int|edu|gov|biz|mil|coop|us))
Assert that the Regex below does not match
1st Capturing Group (.*\.)?
? Quantifier — Matches between zero and one times, as many times as possible, giving back as needed (greedy)
.*
matches any character (except for line terminators)
\. matches the character . literally (case sensitive)
2nd Capturing Group (com|net|org|int|edu|gov|biz|mil|coop|us)
1st Alternative com
com matches the characters com literally (case sensitive)
2nd Alternative net
3rd Alternative org
4th Alternative int
5th Alternative edu
6th Alternative gov
7th Alternative biz
8th Alternative mil
9th Alternative coop
10th Alternative us
Global pattern flags
g modifier: global. All matches (don't return after first match)

 

[cPanelMichael]

Hello,

It looks like you only have access to cPanel and not to the entire server. Thus, you would need to setup a global filter:

Global Email Filters - Version 68 Documentation - cPanel Documentation

We document how to setup filters at:

How to Configure Mail Filters - cPanel Knowledge Base - cPanel Documentation

You can then use one of the examples from that thread when setting up the matches regex part of the filter.

Thank you.