Hello!
On Tue, Jan 11, 2005 at 04:43:45PM +0100, Alex van den Bogaerdt wrote:
On Tue, Jan 11, 2005 at 04:02:24PM +0100, Hannah Schroeter wrote:
So snail mail forwarding, in Germany, works exactly like legacy .forward
style email forwarding, no sender rewriting involved!
This is not true.
The letter was never delivered to your old house, delivery did not
complete.
Just as a forwarded email was never written to /var/mail/username,
right. But it was received by Old Town's distribution center (which is
comparable to the MTA of the forwarder site!).
In this analogy, the final recipient (MX record) is your
house, not your postoffice.
I don't think so. I think the MX is the zip code's distribution sender,
the rest is local delivery (MDA) work.
With .forward style email forwarding, your example would have been:
Postman delivers the letter to your old house. It is accepted.
Someone in the old house relabels the letter and submits it to
the postoffice.
I don't think so. The inhabitants of the old house are equivalent to
anotheruser(_at_)forwarder-site(_dot_)com(_dot_) Just as for email it's not
other users
but the system (i.e. postal delivery agent of the forwarding zip code)
who're responsible for forwarding.
Or more precisely, for email, we have a setup like
MX - local queue - MDA - local storage
|
forwarding/outbound queue
|
mailout
The equivalents would be
zip code's postal distribution center - mailman - house/mailbox
|
outgoing "queue"
And in both cases, forwarded (e)mail does never touch the local queue
(nor the mailman).
And noone accuses the mail distribution service in Old Town of forgery.
"Dear postman, this letter was delivered to the wrong address. I
have written the new address on the envelope, please accept
responsibility for this message again (free of charge) and have
it delivered to the new address in name of the original sender."
I think you actually may get away with this, once or twice. However,
as soon as this kind of operation is abused, the post service will
not allow it anymore. This compares, somewhat, to SPF.
No. In both cases, the relabeling isn't done by some "user", but by part
of the mail transfer system (recipient's MTA rather than the recipient
hirself). And in the snail mail case, the forward works for the time
specified, for any number of letters, not only a few ones.
Alex
Kind regards,
Hannah.