Hello Enterprise Support Community,

We experienced delays in our ZeptoMail service this morning due to a surge in traffic, which caused delays with emails being delivered as expected in our US DC.  Any emails that were queued during this time will be sent out to the intended recipient, though there may be some delays from submission to receipt.

We have deployed the necessary changes to address this increase in queued emails, and service has begun to return to normal at this time.

Please don't hesitate to reach out to us via your dedicated Support Email Address if you continue to experience issues or have any additional questions!