If a server give a 4yz reply to a RCPT command, should it give up on the
entire transaction and retry it later, or should it only retry those
recipients that were not acceptedd?
The latter is the common and traditional behaviour, but there's not much
in *821 that says how a client should behave in this situation. There's
even some text in section 4.5.4.1 which suggests the other behaviour is
correct: "When a mail message is to be delivered to multiple recipients,
and the SMTP server to which a copy of the message is to be sent is the
same for multiple recipients, then only one copy of the message SHOULD be
transmitted."
Is this an erratum?
Tony.
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