PT078778 asked a question.
End-user email format
Hey there,
What is the supported format for a user to register to gain access to the end-user portal?
I have a customer who used the following : a-zA-Z0-9 and _+ @dom.something.com
they cannot save or delete those because they get the error 'email (...) is not valid'.
My assumption is the '+' is counted as a concatenation and meddle with email format, the '_' and '-' seems to work for others customers.
Thanks.
@ptancre - This article may help. While special characters are allowed, a special character cannot be the first or last character of the address. It is likely that in your example, the '+' sign as the last character of the email address is causing the issue.
https://help.returnpath.com/hc/en-us/articles/220560587-What-are-the-rules-for-email-address-syntax-