On March 3, 1998, "Matthew G. Saroff (Reply to the pobox address)"
<matthew(_dot_)saroff(_at_)lmco(_dot_)com> said:
I've noticed that there is some filtering going on out there using a
name+stuff(_at_)comain format. I was wondering where I might find the
specifcs on
this sort of addressing.
This sort of addressing is implemented using sendmail (well, I'm sure the
other MTAs can also do it, but my experience is with sendmail). The last
few releases of sendmail (8.8.6, 8.8.7, 8.8.8) all seem to automatically
default to allowing it.
Basically, for any address of the form 'foo+baz', sendmail ignores the
'+baz' part and just delivers it to foo.
I'm assuming that this is used to create an address that specifies the
source and possibly have an expiration date so when posting publically,
one can automatically trash stuff to that address after a given time.
Is this true?
Heck, you can do whatever you want with it. I typically use it for
autoresponse stuff.
roy
Roy S. Rapoport / rsr(_at_)macromedia(_dot_)com / 415-252-2215