Challenge
Email notifications sent by Veeam Backup for Microsoft 365 are illegible or unexpectedly contain Chinese characters.
Cause
The issue is caused by an encoding conflict. By default, Veeam Backup for Microsoft 365 uses UTF-16 character encoding, and the problem appears under the following circumstances:
Use of Mimecast or Thunderbird
or
Office 365 organization located in Microsoft Azure China or Germany regions.
Solution
Email notification encoding can be changed in Veeam Backup for Microsoft 365. Depending on whether this is a test or job notification, the email will be sent by Veeam Backup for Microsoft 365 Service or Veeam Backup for Microsoft 365 Proxy Service respectively. Therefore, the encoding must be updated on the Veeam Backup for Microsoft 365 server and all remote proxies.
More Information
A similar issue may occur with Veeam Explorer for Microsoft Exchange and is documented in https://www.veeam.com/kb4188.
