Blog Post

Exchange Team Blog
2 MIN READ

Basic Authentication Deprecation in Exchange Online – Time’s Up

The_Exchange_Team's avatar
The_Exchange_Team
Icon for Microsoft rankMicrosoft
Dec 20, 2022
In early January 2023, we will permanently turn off Basic auth for multiple protocols for many Exchange Online tenants. We want to thank you once again for all the hard work you’ve done to prepare ...
Updated Jan 01, 2023
Version 3.0
Announcements
Exchange Online
security
Hifni Nazeer's avatar
Hifni Nazeer
Copper Contributor
Dec 29, 2022

System.Net.Mail.SmtpClient is deprecated, Legacy Applications don't support modern authentication, MailKit doesn't support confidential client authentication; what more solutions do we have to send an email?