Fix email delivery issues for error code 5.7.23 in Office 365

This topic will walk you through the steps of what to do if you see status code 5.7.23 in a non-delivery report (NDR) or delivery status notification (DSN). Content for this help topic will be available at a later date.

Status code 5.7.23

Still need help?

Get help from the Office 365 community forums Admins: Sign in and create a service request Admins: Call Support

See Also

What are Exchange NDRs in Exchange Online and Office 365

Expand your Office skills
Explore training
Get new features first
Join Office Insiders

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.