Yeah, makes sense, but shouldnt the form that anvil shows at that stage check for it in a way that doesnt throw an error? I actually thought they do that.
Interesting, I wasn’t aware the spaces were allowed in email addresses. Apparently they must be wrapped in quotes to be allowed. So the user would have needed to input "abcdefghij 41"@gmail.com
However, it does seem like most email services don’t allow the registration of email address with spaces.