Limit emailconnectionerrorsto notification

Now, when a database connection fails, email can be sent to a specified address. The problem is at times, up to 100 email messages are sent on one failure.

Latest incident was one message sent every two seconds.

This can clog cell phone email accounts with unnecessary messages and cause admins to specify email message to less priority accounts, defeating its purpose.

Improvement would be to send one or two email messages in a specified interval, (5 minutes or so).