Is there any way to verify in Java code that an e-mail address is valid. By valid, I don\'t just mean that it\'s in the correct format (someone@domain.subdomain), but that\'
Do a DNS lookup on the hostname to see if that exists. You could theoretically also initiate a connection to the mailserver and see if it tells you whether the recipient exists, but I think many servers pretend they know an address, then reject the email anyway.