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Outlook - Microsoft 365 Developer Blog

Beta Outlook API throttling limits deploying to v1.0 on Microsoft Graph – May 2020

May 11, 2020 May 11, 2020 05/11/20
Microsoft Graph team
Over a year ago, we announced new Outlook API throttling limits on the Microsoft Graph beta endpoint. We wanted to give developers a "heads-up" that we are planning to deploy these same limits to the v1.0 endpoint (as well as the v2.0 endpoint of the Outlook REST API). This change will begin deploying on June 1, and should be fully deployed to all tenants by mid-June.

What’s new for change notifications and change tracking in Microsoft Graph – May 2020

May 5, 2020 May 5, 2020 05/5/20
Vincent Biret
Change notifications uses webhooks to let applications to get notified about changes in Microsoft Graph resource data such as Outlook messages or OneDrive files. Change tracking uses delta queries to let applications discover newly created, updated, or deleted entities without performing a full read of the target resource with every request. ...

Postponed- iCalUId update on Microsoft Graph

April 7, 2020 Apr 7, 2020 04/7/20
Microsoft Graph team
In a blog post dated February 25, 2020, we announced plans to update  iCalUId on Microsoft Graph to make it adhere to its industry definition.  Since then, many of our customers' priorities have changed in response to the COVID-19 crisis.  As a result, we have decided to postpone making this update. We will provide the developer community ...

Deferred end of support date for Basic Authentication in Exchange Online

April 3, 2020 Apr 3, 2020 04/3/20
Sivaprakash Saripalli
Last year we announced end of support for Basic Authentication for Exchange Web Services (EWS), Exchange Active Sync (EAS), Post Office Protocol (POP), Internet Message Access Protocol (IMAP), and Remote PowerShell (RPS) in Exchange Online. In response to the COVID-19 crisis and knowing that priorities have changed for many of our ...

Accessing Outlook items in a user’s archived, shared or delegated mailboxes using Microsoft Graph

March 17, 2020 Mar 17, 2020 03/17/20
Microsoft Graph team
We have noticed that a few customers are unsure about the right way to access Outlook messages and contacts in mailboxes other than the signed-in user’s primary mailbox (archive, delegated, or shared mailboxes). For example, some customers use one of the following API URLs to access Outlook items in another mailbox, using the item ID and the...