Forum Discussion
Update mailbox quota
Hi,
We have Office 365 E3 subscriptions. I noticed that one of our user has 49.5GB of mailbox quota instead of 99GB... I can see that with the Get-Mailbox PowerShell cmdlet and also in the Exchange admin center.
How can I update his account to get the 99GB mailbox quota as all the other users ?
Thanks for your support,
Antoine.
Here are the instructions - https://support.microsoft.com/en-us/help/2490230/how-to-set-exchange-online-mailbox-sizes-and-limits-in-the-office-365.
This is the command I tested and worked ok -
Set-Mailbox <account> - ProhibitSendQuota 99GB -ProhibitSendReceiveQuota 100GB -IssueWarningQuota 98GB
After running this command on test mailbox with a smaller quota, it was shown as having a 99GB mailbox available.
11 Replies
Here are the instructions - https://support.microsoft.com/en-us/help/2490230/how-to-set-exchange-online-mailbox-sizes-and-limits-in-the-office-365.
This is the command I tested and worked ok -
Set-Mailbox <account> - ProhibitSendQuota 99GB -ProhibitSendReceiveQuota 100GB -IssueWarningQuota 98GB
After running this command on test mailbox with a smaller quota, it was shown as having a 99GB mailbox available.
Slightly better code because it focuses only on user mailboxes and only processes mailboxes that need to be:
Get-Mailbox -RecipientTypeDetails UserMailbox | ? {$_.ProhibitSendQuota -lt 90GB } | Set-Mailbox -ProhibitSendQuota 99GB -ProhibitSendReceiveQuota 100GB -IssueWarningQuota 98GB- Nice !
Thank you Cian !
I found that doc and issued the cmdlet and it worked !
Now I wonder why is this userid did not get the same quotas as the others... I'm the only admin of our tenant and I never played with quotas... strange ?
Good question! I don't know how old that mailbox is but 50GB was the original quota until the end of 2016 when it got increased to 100GB. If it was around then, maybe it just never got the auto upgraded value for some reason but just guessing really.
