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Outlook connector - When new email arrives - Delivery guarantee?



We are using the OnNewEmail trigger of the Office 365 Outlook connector. My understanding is that the trigger is initiated by Office 365 to Flow (i.e. Flow is not polling the mailbox).


What is the expectation of delivery guarantee for the call to flow? If it fails is there any ways or suggested pattern to recover 'missed notifications'?


We had an issue where the authentication failed on the mailbox connector so the flow failed. When we fixed the authentication, new emails started to come in. However, is there any way to process all emails that accumulated in the mailbox but were never processed by Flow?





Community Support
Community Support

Hi @ogaumond,



You could take a try to turn the flow off before you fix the authentication.

And when the flow is trun on again after the authentication is fixed, all the emails that arrived during trun off time would trigger the flow.




Best regrads,


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