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[Outlook 365] Ping Heartbeat interval isn't honored
![](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(195.2, 6%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKP%3C/text%3E%3C/svg%3E)
Karsten Pfeiffer-Raddatz
0
Reputation points
I'm working on a client which can connect to outlook.office365.com and synchronize mails. The client does send the ping command to have push notifications. When sending the Ping the client does send the HeartbeatInterval as described in [MS-ASCMD 2.2.1.13] but on O365 the server will not send the status 1 after the HeartbeatInterval is elapsed. At some point my client will close the connection and does retry the Ping. I was testing this on an Exchange16 and this server will send status 1 after the HeartbeatInterval elapsed. I couldn't find any document describing the difference between O365 and older Exchange Servers. Can someone help me figure out what O365 wants?
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Exchange | Exchange Server | Development
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![](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(108.80000000000001, 13%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJS%3C/text%3E%3C/svg%3E)
Jarvis Sun-MSFT 10,231 Reputation points Microsoft External Staff2024-01-26T02:32:08.8766667+00:00 Hi @Karsten Pfeiffer-Raddatz ,
As far as I know that Office 365 is a cloud-based email solution, while Exchange Server is an on-premises email solution. This could be one of the reasons why you are experiencing different behavior between the two servers.
Unfortunately, I couldn’t find any specific documentation that describes the difference between O365 and older Exchange Servers in terms of the
Pingcommand and theHeartbeatInterval.Since your issue is mainly about O365 synchronize, I have added the Exchange Server Development so that you can get further help at this topic.
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