Marc Perkel wrote:
I am not necessarily speaking of the context of a MTA.
Example pulled out of thin air: if you had a corpus and you wanted to
check the addresses within it, what would be a "polite" way to do so?
Just open an SMTP connection and see what the far end says to "RCPT
TO:", but put a tight rate limit on it?
Yes - that would work. Don't kit any one server faster than once a second.
And make a new connection per check. My server will start replying
invalid address to everything once 5 invalid attempts with the same
connection are made.
Just FYI.
Regards,
Rick
