Update Exim Version from 4.96 to 4.97, on CPanel 110.0.5

[Eugene Robertus]

Exim 4.96 (on CPanel 110.0.5) crashes and fails to deliver emails with messages in panic log "bad memory reference; pool not found". There is a specific fix in 4.97 that addresses this (https://github.com/Exim/exim/blob/master/doc/doc-txt/ChangeLog):

JH/18 Fix a fencepost error in logging. Previously (since 4.92) when a log line
was exactly sized compared to the log buffer, a crash occurred with the
misleading message "bad memory reference; pool not found".
Found and traced by Jasen Betts.

Is there a way to upgrade Exim to 4.97 in Cpanel 110.0.5 or possibly expedite CPanel standard version to include Exim 4.97?

This is very critical as affects email deliverability for the clients.

Thank you!

 

[cPRex]

Hey there! While they have started work on 4.97, there is not even a release candidate available yet for testing, so it will likely be some time until this version is available and ready for use. You can always see what version(s) are available here:

Index of /exim4/

As soon as they have officially released 4.97, we'll get to work on our side!

 

[Eugene Robertus]

oh... haven't realized it's not out yet. Thanks! Do you think or know if I can possibly apply a specific patch or roll Exim to 4.97. I understand I will be out of support for email, but this is really critical. Appreciate any suggestions.

Thanks!

 

[cPRex]

I'm not aware of a good way to apply that patch to an older version at this time. You're certainly welcome to try and use the beta, but we can't guarantee it will work well on a cPanel machine.