I have several employees that are getting undeliverable messages due to delays such as:
Sent: Tue 5/16/2006 5:19 AM
To: xxxxx xxxxx
Subject: Delivery Status Notification (Delay)
This is an automatically generated Delivery Status Notification.
THIS IS A WARNING MESSAGE ONLY.
YOU DO NOT NEED TO RESEND YOUR MESSAGE.
Delivery to the following recipients has been delayed.
and the status is 4.4.7
When I look at the Queues under the Default SMTP Virtual Server in the Exchange System Manager I notice that almost all are set to Retry and only about 5 of 50 are in a ready connection state and the rest alternate between active and retry connection state. This problem just started yesterday and nothing has changed on the Server.
Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.