I understand that, but considering this issue became apparent on 25 January, why wasn't the CURRENT branch paused or rolled back to avoid anyone else updating to the CURRENT branch becoming affected by this issue?There is never a supported way to downgrade cPanel.
Servers being used in a production environment should at least be on Release or a more stable tier, and this issue only affected Current and Edge. The best thing to do at this time is to wait until the fix moves into Current.
I understand, but could we manually update just Exim-4.95 via the EDGE RPM of Exim? . I guess that the patch for this issue is on that RPM.There isn't a way to do that as the cPanel software can't be downgraded. We did make the case high priority, meaning that Current wouldn't get another update until this case was resolved.
wget http://httpupdate.cpanel.net/RPM/11.98/centos/7/x86_64/cpanel-exim-4.94.2-4.cp1198.x86_64.rpm yum downgrade cpanel-exim-4.94.2-4.cp1198.x86_64.rpm
chown mailnull.mail /var/spool/exim/db/wait-remote_smtp
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