Getting an error "Your request contains errors and/or invalid data." when submitting document

Hi dbalmer, thanks for bringing this to our attention.

Could you attach a screenshot showing the error message you're getting, while hiding any personal information?

This will help me to assist further!

per above

Thanks for the screenshot dbalmer - most appreciated.

Can you please clarify if this happens with only this specific document or if it's affecting all of your docs?

If it's  the latter, may we reach out via email perhaps to investigate further? 

I can send the same document to myself.  I can't send it to the recipient's email address, which I've confirmed is a valid email address.  It's a gmail address.

I see, thanks for clarifying that dbalmer - much appreciated. 

As a test, are you able to send it to any other email address with no issues at all? 

Also, can you confirm that you're using Dropbox Sign to do this and not the Signature hub on Dropbox.com?  

Yes, I'm using dropbox sign.  Yes, I'm able to send to other recipients / email addresses.  The problem appears to be isolated to a single recipient.  I am using the same email address to send the document for signature as I am to communicate with them outside of dropbox sign.  Hope this is clear.

Thanks for the clarification again dbalmer - would it be OK if we reached out via email to have a further look internally at this point? 

yes.

Thanks for the cooperation dbalmer - I've just sent you an email, so please take a look at your inbox and we'll take it from there.