3. Automatic MX FailOver (Mail Bagging)

This branded spam filtering solution includes MX Failover (Mail Bagging) for up to four days in the event your clients experience primary mail server downtime.

Queue Access

You can access the email queue from the Web interface, from which you can also manually force-retry delivery of a queued message.

Automatic Retry Schedule

Messages queued because of temporary problems with the destination route (for example network problems) are automatically retried for delivery at the following approximate intervals:

• During the first 2 hours, delivery is retried at a fixed interval of 15 minutes.
• During the next 14 hours, delivery is retried at a variable interval, starting at 15 minutes and multiplying by 1.5 with each attempt (e.g. after 15 minutes, then 22.5 minutes, then 34 minutes, and so on).
• From 16 hours since the initial failure, until four days have passed, delivery is retried at a fixed interval of every 6 hours.
• After four days we generate a bounce to the sender. After this time, delivery of the message will have permanently failed.