Plesk (windows) backup gives the error: Failed to connect to database: User ‘admin’ has exceeded the ‘max_user_connections’ resource (current value: 10)

when you try to backup the databases of the websites from Plesk Backup util and you get failure and the message “Failed to connect to database: User ‘admin’ has exceeded the ‘max_user_connections’ resource (current value: 10)” you have to change the mysql options

Moodle – The ‘Data Directory’ you specified could not be found or created.

If you try to install moodle in a Plesk server (99% it will have open_basedir enabled in php) and you get an error when you define what is the Data Directory (The ‘Data Directory’ you specified could not be found or created.) you have to

ISAPI Extention gives error: The specified module could not be found.

If you have enabled ISAPI ext. to a vhost and you get blank pages or “The specified module could not be found.”

How to Prevent the IIS SMTP Virtual Server from Relaying E-mail Messages

Do the following: 1) Start Internet Information Services Manager or open the Internet Information Services (IIS) snap-in. 2) Expand Server_name, where Server_name is the name of the server, right-click Default SMTP Virtual Server, and then click Properties.

How do I change the address Qmail (MAILER-DAEMON@hostname.tld) sends error messages to.

As By default Plesk administrator’s email address is listed in: