You can flush or pause Velocity MTA mail queues in the .
Select the mailbox provider and IP address you want to discard or pause mail for, then click the Manage Queues dropdown.
Discarding mail initiates a pause on the mail queue and deletes all newly injected mail during the discard process. Pausing the mail queue without a discard preserves all messages until the queue has been resumed.
Start monitoring the log file before you perform an action to see your changes take effect. In this case, we'll monitor a Discard, which will show all our recipients marked as SUPP for suppressed in the velvet log file.
You must click Resume when a Discard is complete or your mail queue will stay in a Discard state, permanently suppressing all newly injected mail.
Bypass Deferral
If an IP address is waiting for an extended timeout period that was triggered by a deferral with a mailbox provider such as Yahoo and you want to test if the deferral condition has expired already, you can select bypass deferral to initiate an immediate delivery retry.
