I noticed this evening that i was not getting email notifications on normal alert conditions. Troubleshooting revealed the error to be related to Microsoft hosted email refusing the connection based on TLS version. This has worked perfectly for the last 2.5 years. Here are my server settings:

server: smtp.office365.com
port: 587
from email: <my_hosted_email_address>
Use a secure connection (TLS/SSL required): checked
Authenticate: checked
login: <my_hosted_email_address>
password: <my_password>

When running the email test I receive the following message:

"Proceeding
Connected
Error with user authentication;Server says: 421 4.7.66 TLS 1.0 and 1.1 are not supported. Please upgrade/update your client to support TLS 1.2. Visit https://aka.ms/smtp_auth_tls. [MN2PR04CA0033.namprd04.prod.outlook.com]"

If MS changed the TLS requirement I can't believe I'm the only person who is experiencing this problem, right?

So, how to get TLS 1.2 support? I've started a support ticket email with BI.

Thanks!

If you haven't already, email that to support at BI. You're paying for it and you'll get reliable information.

As mentioned, I have sent BI support an email explaining everything I've said above. I posted here to see if anyone else has encountered this issue. I can't believe I'm the only person using Microsoft-hosted mail for BI email notifications. If more folks are dealing with this issue perhaps BI support will move more swiftly to find a solution. That's my hope anyway.

Enabling TLS1.2 and disabling earlier versions has been a significant part of the last 18-24 months of nearly every IT team.

Have a read of this: https://support.microsoft.com/en-us/top ... 268bb10392

It might help you enable TLS1.2 and disable earlier versions on your machine.

prRec thanks for the information. I went through all the outlined steps. It was in fact the last step of turning off "DisabledByDefault" that solved the problem. Works like a charm now. Thank you sincerely!