send email function does not seem to be working after upgrading to version 8.1.2

[nls7010]

We recently upgraded to version 8.1.2 Splunk and now our email alerts don't appear to be working.  I had this issue in version 6.6.3, but had not seen it since then (we did upgrade to 7.2.6 before moving to 8.1.2--did not see the issue then either).  I have looked at older logs that said to remove a few lines in the sendemail.py file and I found similar lines in the new sendemail and marked them out with a # sign, but it did not fix the issue.  We are delaying our upgrade of the Production system until we solve this email issue.  Any ass

[burwell]

Hi. Have you tried searching your _internal logs? What error is in the python log?

I did a search like

index=_internal host=myhead*  sourcetype=splunk_python

When I do the search I got something like

2021-04-30 23:07:02,181 +0000 INFO      sendemail:156 - Sending email. subject="My Alert", results_link="https://myhost.mydomain.com:8000/app/search/@go?sid=scheduler_YWRtaW5fc3BsdW5r__search__RMD54eadd0aa6872f5e8_at_1619824020_41", recipients="['[email protected]']", server="mymailserver.mydomain:25"