Microsoft 365 Exchange Error Code n/a – The message can’t be submitted because the sender’s submission quota was exceeded

In this post, let’s have a look at the error message “n/a – The message can’t be submitted because the sender’s submission quota was exceeded” 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

n/a – The message can’t be submitted because the sender’s submission quota was exceeded

Error Details

The user account has exceeded the recipient rate limit (10,000 recipients per day).

The account has likely been compromised. For more information, see Fix email delivery issues for error ‘the sender’s submission quota was exceeded’ in Exchange Online.