Hmmm. A bit of a complication is that we are using a free account.
There doesn’t seem to be a way to contact support without a paid account.
https://www.dropbox.com/s/xzvdjvu4rpxyrwf/Screenshot%202016-09-22%2011.33.22.png?dl=0
[email protected] was just a sample email we used to see how strict the form validation was.
Here’s an actual address that wasn’t able to make it through:
[email protected]
They contacted us directly and said the form wasn’t working. I also manually entered that address and got the same error.
This is a valid email address and we were able to send & receive emails to this address.
Example of error
https://www.dropbox.com/s/peiy90un4q7tqff/Screenshot%202016-09-21%2015.57.35.png?dl=0