Please be aware that the Squirrelmail webmail application has now been removed from cpanel. The software hadn't seen any development or updates since 2013 and was essentially an abandoned project. A decision was made to remove it for security reasons.
We apologise for the lack of notice. Squirrelmail has been on the cPanel deprecation plan for some time and we haven't provided any prior warning that it was going to be removed.
The two remaining webmail apps, Horde and Roundcube are of course still available and both are fully featured, thriving open source projects. As yet a third offering to replace Squirrelmail hasn't been found.
If you've had an address book in Squirrelmail that you want to import into one or both of the other apps, please let us know and we can do that for you as a priority.
Again, apologies for the short notice.
The 4UH Team.
Friday, March 1, 2019