SymptomsIt is not possible to change password for mail account through the Horde interface. Browser displays the error:
Failure in changing password for Horde Authentication: User not found
ResolutionThis issue was discovered in Parallels Plesk Panel version 9.5.1. and was fixed in version 9.5.2.
Please consider upgrade to Parallels Plesk Panel version 9.5.2 or above.