Validating email addresses in vb net

This method validates that e-mail addresses have the form "[email protected]".

Use this code to validate the string before trying to use it as an e-mail address.

The following example codes demonstrate how to test email address without specified SMTP server.

Test Recipients method can be used to test if the email address is valid. Firstly, Smtp Client performs a DNS MX record query.

If it retrieves the recipient’s local SMTP server successfully, Smtp Client will try to connect to this server.

I spent three weeks re-writing the mail address parser in . One more thing, the only thing you can validate is the format of the mail address.

You can't ever validate that an email address is actually valid for receiving email without sending an email to that address and seeing if the server accepts it for delivery. Show("Please enter a valid email id", "Checking") txtemailid. Mail Address(str Check) Catch ex As Exception Return False End Try Return True End Function The Internet and this site are shock full of incorrect attempts at solving this with a regex.

regular expression pattern to separate the domain name from the email address.

Last modified 22-Aug-2019 17:35