Re[4]: Help - How to unwind an SRS address?

"Roger Moser" <[email protected]> Sun, 21 Nov 2004 07:09 +0100
Newsgroups gmane.mail.spam.srs.general
Message-ID <[email protected]>
Chris Drake:

> 1. It's an SRS-re-written address IFF it starts with (case sensitive)
>    SRS0=

Since some MTA's change the return-path to lower case, it could also start
with "srs0=" etc.

> 6. HHH and TT etc components MUST not be missing

Yes, but don't assume that HHH is three characters and TT is two characters.

One character (e.g. the day of the month) for the timestamp is enough
because one can find out the full timestamp from that character and the
current date. For example if the timestamp is "P" (15), then you now that it
is November 15, 2004. It cannot be any other date because then the hash
(which includes the full timestamp) would be different.

Roger