Random Characters in e-mails received in Lotus Notes

Random Characters in e-mails received in Lotus Notes

I am having a strange problem. I have e-mails that are automatically sent out based on certain criteria. About 9 months ago, random characters started appearing in the e-mails. In different places, but consistently. Either "&! nbsp;" or just an exclamation mark. Usually both at least once or twice per e-mail. 

Here's the strange thing. If I just chose the e-mail template manually (as opposed to it be sent automatically when a Rule is invoked) - it looks perfect. And when I copy myself at a G-Mail account, it's also perfect. Just seems to happen when sent to Lotus Notes via Zoho CRM automation.

Does anyone recognize the pattern of those characters as a clue as to what might be happening? 

I have recreated the e-mail template from scratch, so that can't be the problem.

Sample screen capture attached. 

Any help much appreciated.