On 14 Nov 2005, at 13:00, Marc Sherman wrote:
Ian Eiloart wrote:
I'm not sure about that, but "drop" doesn't seem very polite
here. Better to do a 5xx reject, so that genuine errors don't
stick on sending servers. The vast majority of mail that sticks
in my queues does so because it can't be delivered to an address
with a typo in it.
Drop does send a 5xx reply, and _then_ drops the connection.
- Marc
Ah! I didn't realise that. I guess that has the disadvantage that
good recipients get dropped with the bad ones, so if I send email to
three people in the same domain, and one is undeliverable, then the
other two don't get it either. Great for spam, but bad for genuine
senders.
--
Ian Eiloart
Postmaster,
IT Services
University of Sussex
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