troubleshooting Question

What is the max number of messages allowed in exchange 2016 / outlook 2013?

Avatar of king daddy
king daddyFlag for United States of America asked on
8 Comments1 Solution77 ViewsLast Modified:

A user reached a limit of 1200 messages in his inbox and is unable to receive email. The previous admin set a limit of 1200 messages. Not sure why. A tech reached out to me and said he changed the "MaxObjsPerMapiSession" limit to 50,000. He was instructed to increase the number a messages allowed in the users inbox. I believe the wrong reg entry was changed. I believe this limit is an Outlook limit not Exchange. There is an MS article stating that the inbox can have up 100,000 messages before one may experience performance issues, but, again, it specifically mentions Outlook not Exchange. 

Where would one increase the number of messages allowed in an inbox when on Exchange 2016 and Outlook 2013? Is there a limit or quote on a database level for number of messages in an inbox on Exchange?

Thanks for any assistance.
Karen Falandays
Training Specialist

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 1 Answer and 8 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 8 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros