Smtp Mail Server connections to outlook office 365

Has anybody come across this error in your Lucee Mail Log files?

storedrv.clientsubmit; sender thread limit exceeded . Apparently Microsoft has made some changes to authenticated smtp emails being sent.

If so, has anybody found a workaround?

Thank you,

Dale

Seems you are only allowed 3 concurrent connections per mailbox Controlling SMTP authentication for Office 365 mailboxes - Blog