Forum Discussion
Limits for maximum addresses in the IPListBlocked when using set-organizationconfig in EXO
Looking for a maximum number of entries in the IPListBlocked value when using the Set-OrganizationConfig -IPListBlocked parameter in Exchange Online
I have about 5000 IP CIDR's that I intend to block and cannot locate any documentation on the max entries for this..
When I try to add using PS I get an error:
The administrative limit for this request was exceeded.
Wondering if there is a max limit for "MultiValuedProperty" in EXO..
as always appreciate your inputs.
3 Replies
https://docs.microsoft.com/en-us/powershell/module/exchange/organization/Set-OrganizationConfig
"This parameter has a limit of approximately 1200 entries."
This article is probably helpful:
https://blogs.technet.microsoft.com/askds/2015/10/29/administrative-limit-for-this-request-was-exceeded-error-from-active-directory/
Attempted to do this today using a public blacklist as the source material (~5k entries) and found that i could only get the first 1176 entries into IPListBlocked in EXO.ymmv depending on the size of the Ips you want to add.
I havent seen any public documentation that mentions these limits, I sugges you open a support case to get a proper answer. Do post back if you get it please :)
