First thing, Coma (,)
is not allowed in email. But for your scenario, Use following regular expression:
For "xyx,+ xyz125"
^[a-zA-Z0-9][a-zA-Z0-9,+_- ]+$
For email
^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
+ "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$
Hopefully will solve you problem.