At 12:11 PM -0800 12/12/02, Chuck Yerkes wrote:
The RFC does say that after logging in the server acquires an exclusive lock, but it isn't clear that this prohibits multiple access per se. There are servers which permit simultaneous POP access by the same user, and there's nothing wrong with this, as long as each POP client gets a consistent view of the spool. So if client A deletes a message, client B's session is unchanged; if A deletes a message enters update state, B's session is still unchanged; the message still exists.Use IMAP which can allow multiple access to one account. POP cannot.
But most POP servers don't bother with this, since it's more complex and usually not needed.
