I set up Postfix with Dovecot and installed Squirrelmail for the end-users.
I installed the Squirrelmail plug-in 'Autoresponder / Mail Forwarding or vacation', but when I try to save an auto respond message I get the following error:
Options - Autoresponder / Mail Forwarding
ERROR:
Error: Unable to upload file. Please contact your system administrator
Error: Unable to upload file. Please contact your system administrator
Error: Unable to upload file. Please contact your system administrator
Error: Unable to upload file. Please contact your system administrator
Error: Unable to upload file. Please contact your system administrator
Error: Unable to upload file. Please contact your system administrator