Validating email addresses in vb net dating online script software
Function Valid Email(By Val str Check As String) As Boolean 'Created by Chad M.
You can set up the desired validation tests by using of the Validation Level component property. When you set the validation level, the component always performs all previous validation levels as well. Domain level, the component performs 1, 2 and 3 steps above; if you set the Email Validation Level.
Smtp level, the steps 1, 2, 3 and 4 are performed, etc.
To do that you have to learn regular expression syntax clearly.
This component uses different levels of email tests: it can check the email syntax, test the domain availability, check whether the SMTP service is available and, finally, check if the mailbox exists.