If you are going to use Microsoft 365 email account for Veeam Notifications, it happened that SmtpClientAuthentication is disabled for the Tenant error. Today I will show you how to fix it.
1.Sign in Microsoft 365 portal with a Global Admin account, and select Admin.
2.On the Microsoft 365 admin center, expand Users and select Active users.
3.On the Active users page, click service account (in my case, the service account is VBOBK), and select Mail.
4.On the Mail page, select Manage email apps.
5.On the Manage email apps, make sure to select Authenticated SMTP and click Save changes.
Hope you enjoy this post.
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Author: Cary Sun
Cary Sun is an Principal Consultant, He has a strong background specializing in datacenter and deployment solutions, and has spent over 20 years in the planning, design, and implementation of network technologies and Management and system integration.He hold CISCO CERTIFIED INTERNETWORK EXPERT (CCIE No.4531) from 1997.Cary is also a Microsoft Most Valuable Professional (MVP) and Cisco Champion, He is a published author with serveral titles, include blogs on Checkyourlogs.net, author for many books. Specialties: CCIE /CCNA / MCSE / MCITP / MCTS / MCSA / Solution Expert / CCA