Recibir mail borrando la copia del servidor

[roman]

Quizá esto aclare un poco la situación:

Empezado por Post Office Protocol

DELE msg

Arguments:
a message-number (required) which may NOT refer to a
message marked as deleted

Restrictions:
may only be given in the TRANSACTION state

Discussion:
The POP3 server marks the message as deleted. Any future
reference to the message-number associated with the message
in a POP3 command generates an error. The POP3 server does
not actually delete the message until the POP3 session
enters the UPDATE state.
may only be given in the TRANSACTION state

// Saludos