Spell check doesn't work within template.

Spell check doesn't work within template.

Hi Zoho

This is an annoying little issue.  

I use my signature in my tickets as an email template. Before, I had no problems using spell check, but now for some reason it doesn't work. It's obviously the HTML template that's causing the issue, but it didn't seem to have a problem with it before.  Is there any fix for this?