Forum Discussion
What is the limit of Outlook clients connected to the same Exchange Account.
Here is a link to a page that details this: https://technet.microsoft.com/en-us/library/ff477612(v=exchg.141).aspx
You want to pay close attention the "Session Limits". As this is what applies to you. Based on the default parameter - you're looking at 16 user sessions per server - which is likely what's tripping you up.
Hi, well i've seen this and it might be unchanged in the past 6 years and might be the same in Exchange Online. What i've found in the meantime is that the limit in exchange online could be 20 and that you can ask msft to increase this limit. So now i have created a ticked with this question. I'll post my findings back here.
Ok just got it confirmed by Microsoft the max amount concurrent sessions are 40.
When mapping the mailbox using user credentials 4 connections are opened: 2 for Azure AD, 2 for Exchange. so that devides the limit to 10. It can nog be increased (only during migration) so i'm stuck and out of luck :)
- Do the same limits apply when connecting using Outlook on the Web?
