Problem with Windows App SDK Push Notifications Mapping Request email to Win_App_SDK_Push@microsoft.com

[frank-mv]

Type of issue

Other (describe below)

Feedback

I've tried multiple times to send a Windows App SDK Push Notifications Mapping Request email to Win_App_SDK_Push@microsoft.com as described here.

Each time I get such an error message back:

Error message for [Win_App_SDK_Push@microsoft.com]
SMTP error from remote server for RCPT TO command, host: microsoft-com.mail.protection.outlook.com (52.101.41.28) reason: 550 5.4.1 Recipient address rejected: Access denied. For more information
see https://aka.ms/EXOSmtpErrors [SJ1PEPF00002321.namprd03.prod.outloo
k.com 2026-08-18T11:52:20.363Z 08DEF8C7EA967B7C]

Something does not work here, or the information about this process given on this page is not correct resp. outdated.

Page URL

https://learn.microsoft.com/en-us/windows/apps/develop/notifications/push-notifications/push-quickstart

Content source URL

https://github.com/MicrosoftDocs/windows-dev-docs/blob/docs/hub/apps/develop/notifications/push-notifications/push-quickstart.md

Author

John Kennedy (@GrantMeStrength)

Document Id

0c418eda-33e5-fb8a-b8be-0bb5c2a06ec8

Platform Id

b2743b5f-9ade-62e9-3591-cb60543ac25e