Avatar of Riaz Alexander Ansary
Riaz Alexander Ansary
Flag for United States of America asked on

Exchange Store Limit

is the Exchange Store Limits different when using outlook application downloaded from o365 subscription? i know its a odd question but we have this situation right now. couple of users who got the  new outlook app from their O365 account, all of a sudden gets error when sending emails:

"This message could not be sent. Your server administrator has limited the number of items you can open simultaneously. Try closing messages you have opened or removing attachments and images from unsent messages you are composing. Try sending the message again later, or contact your network administrator."

all mailboxes are on Prem exchange 2016. no one else has the issue.
ExchangeOutlookMicrosoft 365

Avatar of undefined
Last Comment
Riaz Alexander Ansary

8/22/2022 - Mon
Vasil Michev (MVP)

There are indeed different store and throttle limtis in O365, and we cannot customize those. However, none of that depends on the client, so using a newer Outlook version will not cause this.
Riaz Alexander Ansary

this is why the issue is odd for me becasue when this same users uses outlook 2016 he is fine but when uses the outlook installed from o365  he keeps getting that message and cant send emails to everyone as it gives
This message could not be sent. Your server administrator has limited the number of items you can open simultaneously

so I am not sure what else can it be. I dont want to go ahead and change the store limit on each exchange server and increase the limit.
Vasil Michev (MVP)

Try running Outlook in safe mode, or recreate the profile.
Experts Exchange has (a) saved my job multiple times, (b) saved me hours, days, and even weeks of work, and often (c) makes me look like a superhero! This place is MAGIC!
Walt Forbes
Adam Brown

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
Riaz Alexander Ansary

thanks guys it is the add on