In this post, let’s have a look at the error message “Generating server – This field indicates the name of the SMTP mail server that created the NDR. If no remote server is listed below the sender’s email address, the generating server is also the server that rejected the original email message. When the remote mail server acknowledges and accepts the message, but later rejects the message, for example, because of content restrictions, the remote server generates the NDR. If the remote mail server never acknowledges and never accepts the message, the sending server in Exchange Online generates the NDR.” that you get when working with Microsoft 365 Exchange Online.
These are the errors that you usually receive when there is a problem in delivering the email message that was sent by you. These errors are generated and sent by Office 365. This is usually alled as DSN which stands for delivery status notification or in simple words bounce messages.
NDR or Non-delivery report is one of the common type of message that you receive which indicates to the user that the email was not delivered.
Error Message
Generating server – This field indicates the name of the SMTP mail server that created the NDR. If no remote server is listed below the sender’s email address, the generating server is also the server that rejected the original email message. When the remote mail server acknowledges and accepts the message, but later rejects the message, for example, because of content restrictions, the remote server generates the NDR. If the remote mail server never acknowledges and never accepts the message, the sending server in Exchange Online generates the NDR.
Error Details
This value is the email address of the recipient. If delivery failed to more than one recipient, the email address for each recipient is listed. The following information is also included for each failed recipient:
Field
Description
