How to workaround an IP listing in Spamhaus

Kent Brockman

Well-Known Member
PartnerNOC
Jan 20, 2008
1,287
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Buenos Aires, Argentina
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Root Administrator
Hello people. I have an interesting scenario to share and ask for some advice.

I have two cPanel VPS's, right? One of them is in a server node which IP range have been blocked in Spamhaus due to a bloody neighbour practicing spam. And this VPS of mine in the listed server is the one with more mission critical websites.
I cannot move those websites off to my second VPS because they serve too many features to several companies by IP. But, those companies are receiving bounces when it comes to send something as basic as a feedback mail to a yahoo address.

So the ask for advice is about this, what do you suggest to do, in order to allow them sending emails with no bounces until Spamhaus delist the IP range? Maybe something with MX records? Maybe sth with DNS clustering?

What would you do?

Any ideas will be thankful. Thanks!
 
Last edited:

cPanelMichael

Administrator
Staff member
Apr 11, 2011
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2,216
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Hello :)

Are you able to obtain an additional IP address for this server that has not been blacklisted? If so, you can configure Exim to send out all emails over that new IP address with the instructions at:

Changing the Sending IP for Outbound Email in Exim

Thank you.
 

Kent Brockman

Well-Known Member
PartnerNOC
Jan 20, 2008
1,287
64
178
Buenos Aires, Argentina
cPanel Access Level
Root Administrator
Well, nope. Spamhaus have blocked the entire /24 range preemptively :(
I configured a parallel account in my other VPS with the same email accounts, and modified the MX records so they can be able to send and receive emails without having to move the entire domain. It's a provisional solution while Spamhaus decides to unblock the IP's