E-Mail Notification not working anymore (Office 365)

Added by Mark Renton about 2 years ago


since about 2 weeks, the E-Mail Notifications doesn't work anymore. I am using Redmine 3.4.3 and the SMTP Office 365 Server. I haven't made any changes in the configuration, before it has been wokring fine.
Could it be related to this:


What TLS Version is used for Redmine?

Thank for your help!