I've created some Subscriptions for certain inboxes many months ago, and system successfully received notifications about received emails, also subscriptions are regularly updated to increase expiration dates. Here's the list of my subscriptions:
https://graph.microsoft.com/v1.0/subscriptions/
{
"@odata.context": "https://graph.microsoft.com/v1.0/$metadata#subscriptions",
"value": [
{
"id": "ef4d00ca-cf0c-4da6-bded-1ab47295e3f5",
"resource": "users/622eee14-9413-49e3-ac53-10148eba09be/messages",
"applicationId": "281e7aa8-7ef8-4a02-9195-83ffb149d95c",
"changeType": "created",
"clientState": null,
"notificationUrl": "https://...",
"expirationDateTime": "2019-12-03T23:00:03.0238504Z",
"creatorId": "2ca67f35-32ba-4ef5-99ab-6686a93e0007"
},
{
"id": "6f056383-df34-47b5-aaf2-dce3fca1c511",
"resource": "users/3ccbd0c8-f11e-4bac-99df-27b78be74aaa/messages",
"applicationId": "281e7aa8-7ef8-4a02-9195-83ffb149d95c",
"changeType": "created",
"clientState": null,
"notificationUrl": "https://...",
"expirationDateTime": "2019-12-03T23:00:01.4332477Z",
"creatorId": "2ca67f35-32ba-4ef5-99ab-6686a93e0007"
}
]
}
But starting today (2019-12-02) system stopped receiving notifications. Then I've created subscription with my test account subscription was created successfully, calling https://graph.microsoft.com/v1.0/subscriptions/, I've received response
{
"@odata.context": "https://graph.microsoft.com/v1.0/$metadata#subscriptions",
"value": [
{
"id": "dfefbb04-887f-439f-bb09-a6075eeca8cd",
"resource": "users/ebaeb8ab-44c1-40e1-8725-635759c035db/messages",
"applicationId": "57afcb67-6089-4abc-bba8-2470ce9c22ec",
"changeType": "created",
"clientState": null,
"notificationUrl": "https://63efa1ea.ngrok.io/api/Core/MailNotification/Listen",
"expirationDateTime": "2019-12-04T13:10:14.2380272Z",
"creatorId": "6a046ec1-ec01-43de-83b8-0e0696e89ecf"
}
]
}
I've tried sending email to mailbox, mentioned above, but still I receive no notifications. Does something changed to Ms Graph? Is there a way to troubleshoot this problem, can I see some logs in azure portal or somewhere else, did MS Graph tried to send me a notification? Or it just suddenly stopped working?
