Determine POP3 server by email


Given an email like .
It is necessary to define the incoming mail server (address and port) for reading the letter. It is desirable to specify a username.

For should issue username:name
For should username

For the latter, you can not check. Brought only to show that the names for postal addresses are taken not before the @ symbol. And I doubt that this is even possible for the latter (name definition).

BUT: The Gmail service defines the domain perfectly.


I would venture to suggest that there is an enumeration of common names (pop, pop3, mail, relay, etc.) with a check on port 110.

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