We have an issue with overuse of our mailbox that is preventing emails from getting sent out.

We had accidentally reactivate a logging feature that sent an email out when a java exception got caught. One of our apps was logging about 600 a minute due to recursive loop and now we’ve got way too many emails to process.

Is there any way we can clear out the queue before these get sent out? I know we could do it in 2016 with Exchange Server, but at this rate emails that were sent out on May 4th won’t get sent out until next week due to the 10,000 limit.