There are possibilities to validate if an email exists without sending an email. Your backend can open a socket the the email server of the email address and ask for the address. I'm not 100% sure if there could be a bouncer rule based on the content but it ensures at least that the given email address accepts emails from your server.
There are possibilities to validate if an email exists without sending an email. Your backend can open a socket the the email server of the email address and ask for the address. I'm not 100% sure if there could be a bouncer rule based on the content but it ensures at least that the given email address accepts emails from your server.
Here is an telnet example for this: webdigi.co.uk/blog/2009/how-to-che...