Email regex isn't working for me, what did I do wrong?

Question

I'm getting this text populating 3.14 Survey123 Connect.

I haven't used the body::esri:inputMask in a while; what am I doing wrong?

I used the code from this post https://community.esri.com/t5/arcgis-survey123-questions/syntax-for-email-address-field-input-mask/td-p/783484

~ Michelle

jcarlson · Answer

The linked post states that the input mask won't take an arbitrary length expression. You need to put that expression into the constraint column.