HTML Emails out of Person's record

HTML Emails out of Person's record

Hi there,

since I started using Zoho CRM I was able to send HTML Emails out of people's records. I copied my HTML code in the email window, even if the code was long (more than 100.000 characters), pressed Sent and all was fine. I've sent hundreds of emails like this...up until recently.

For some time now, when I do the same I've done for weeks, I get an error message, telling me that the line is too long. See attached screen grab on this error message.

Obviously something has changed? Is sending HTML Emails not possible anymore out of people's records? It did work before and even with HTML code that was larger than 100.000 characters...is this not working anymore? If so, why not?

I would need this to work still, please!!
Thanks,
S.