4 ms·
Isn't the sure fire way of validating an email address to connect to the mail server and see if the address exists?
by gnubardt 17y ago
Isn't the sure fire way of validating an email address to connect to the mail server and see if the address exists?
- QE2 17y agoMany mail daemons will "accept" mail no matter who the recipient is. Internally, unmatched mail may be discarded or forwarded to a "catch-all" account, but all the sender sees is "Recipient ok" I think this started as a response to SPAM bots that used to "RCPT TO:" random strings and save a list of valid address.
- vsync 17y agoPretty sure that's a MUST NOT in the RFC