This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(291.2, 28.999999999999996%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ%3C/text%3E%3C/svg%3E)
Hello,
I am managing 14k user in a new project.
I m beginer in exchange administration.
I have almost have full rights on the server.
À lot of my user have quota problem they cannot send or receive any mail. They have notification about mail has failed to be sent. For quota reason.
If i check my ecp admin console. They are for some of them arround 10% or 25% of 25go, so i dont understand what is happening any idea on where to investigate are welcome. I tried nothing yet.
Édit : I forgot to say this is after a migration project.
Thanks before
Using classic Outlook for Windows in business environments
The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(281.6, 84%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJL%3C/text%3E%3C/svg%3E)
Hi @Jordane ，
Welcome to Q&A forum.
Please understand under Outlook tag, we mainly focus on general issues on Outlook desktop client, considering your issue may be more related to exchange, in order to solve it better, I added office-exchange-server-administration tag under your post, thanks for your understanding and hope your issue would be resolved soon.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(284.8, 17%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EYS%3C/text%3E%3C/svg%3E)
Hi @Jordane ,
What't the version of your Exchange server?
Do you mean you have checked the mailbox usage of some problematic users via ECP and verified they still have a lot of space in the mailbox?
They have notification about mail has failed to be sent. For quota reason.
If possible, could you remove all sensitive information like email address, domain name, etc. , and then share a screenshot of the notification so that we can learn better about the situation?
If an Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
Hi and thx,
It is exactly like you show.
Unfotunatly this is against my rgpd I can provide screenshot exemple from the web but not my own infra.
For this Time you did it for me.
I mena when i’m level one admin if i reset quota it can solve that issue ?
I tried but i have no answer from the user
Hi @Jordane ,
It is exactly like you show.
If that is the case, seems to me that it's likely the issue is not related to the user's mailbox quota. Below is what the user see when the mailbox's send/receive quota is exceeded:
And this is what I see in EAC:
Supposing the above is not your users are encountering, could you try sharing "the notification about mail has failed to be sent" so we can do further analysis on this? For privacy concerns, you can remove all personal information involved, just share the general error message.
Hi @Jordane ,
It has been a couple of days since we've got an update. Have you had a chance to see my reply ealier? If you still need help on this issue, please feel free to post back with the notification message the user received so that we can try do further analysis on this.