web
You’re offline. This is a read only version of the page.
close
Skip to main content
Community site session details

Community site session details

Session Id :
Service | Customer Service, Contact Center, Fie...
Suggested answer

High usage of email entity by SYSTEM causes throttling and mailbox alerts

(0) ShareShare
ReportReport
Posted on by

Hello experts,

we have an environtment where there is a very high usage of email entity, ~1 million retrieve operations occures daily by SYSTEM account.

This started approximately 2 month ago,formerly it was not noticable.

I checked, no new workflows or changes added to the environtment which can cause this kind of high usage, there is only 58000 emails synced.

The following error messages causes mailbox alerts daily, more and more frequently:

Mailbox Configuration Validation Failed. CrmException occured: Number of requests exceeded the limit of 6000 over time window of 300 seconds.

We using Exchange server side sync, no changes applied to its settings a year ago.

What can be the root cause of this?

How can it be solved?

Thank you for your input.

I have the same question (0)
  • Suggested answer
    Leah Ju Profile Picture
    Microsoft Employee on at
    RE: High usage of email entity by SYSTEM causes throttling and mailbox alerts

    Hi regex91,

    SSS is Server-side synchronization, which is the preferred option for organizations with users who run customer engagement apps in a web browser or on a mobile device.

    https://learn.microsoft.com/en-us/power-platform/admin/server-side-synchronization 

    When you set mailbox, you need select it:

    pastedimage1667809126683v1.png

    Cloud SSS is upgrade of the SSS, it is possible that it has enabled automatically in your org.

    The error you are experiencing is most likely due to cloud SSS, so i suggest that you raise ticket for Microsoft support.

  • regex91 Profile Picture
    on at
    RE: High usage of email entity by SYSTEM causes throttling and mailbox alerts

    Sorry, but I'm not sure what CloudSSS and SSS means in this Dynamics 365 customer service context.

  • regex91 Profile Picture
    on at
    RE: High usage of email entity by SYSTEM causes throttling and mailbox alerts

    Unfortunately no.

    We will possible raise a ticket for microsoft.

  • GerbenW Profile Picture
    5 on at
    RE: High usage of email entity by SYSTEM causes throttling and mailbox alerts

    Hi,

    We experience the same issue since the new wave update. Did you manage to resolve the issue already?

    pastedimage1667552341975v1.png

    Kr,

    Gerben

  • Suggested answer
    Leah Ju Profile Picture
    Microsoft Employee on at
    RE: High usage of email entity by SYSTEM causes throttling and mailbox alerts

    Hi regex91,

    This error message occurs when threshold has been reached on the CloudSSS. 

    As this is an set limitation on Cloud SSS they need an Opt-Out.

    You need open ticket for Microsoft support to opt the org out of CloudSSS and moved to legacy SSS.

    https://admin.powerplatform.microsoft.com/support 

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Responsible AI policies

As AI tools become more common, we’re introducing a Responsible AI Use…

Andrés Arias – Community Spotlight

We are honored to recognize Andrés Arias as our Community Spotlight honoree for…

Leaderboard > Service | Customer Service, Contact Center, Field Service, Guides

#1
Abhilash Warrier Profile Picture

Abhilash Warrier 100 Super User 2025 Season 2

#2
Suresh Kulla Profile Picture

Suresh Kulla 72 Super User 2025 Season 2

#3
Daniyal Khaleel Profile Picture

Daniyal Khaleel 53

Last 30 days Overall leaderboard

Featured topics

Product updates

Dynamics 365 release plans