Subject line with special characters displays UTF encoding after FP10 upgrade

I upgraded our Domino Windows based SMTP server from 901FP8 to 901FP10. Since then if the subject line had a special character, like a leading ball, it now changes it to UTF encoding (no political comments please)

Subject: Thanks

Yes JBAMAVKUPX from IF1 was the fix. And I just had to put it on my SMTP servers. But I am getting that to the rest of my servers

Subject: image is not showing let me try again

Subject: image is not showing let me try again

Subject: You need FP10IF1

Excerpt from fixlist:

JBAMAVKUPX Fixed an issue where the subject line encoded (UTF-8) after upgrading to Domino 9.0.1FP10

Subject: Let’s try an imgur link

Imgur: The magic of the Internet https://imgur.com/a/BtwIgwm