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smtp-server, and toplevel domain verification..
I saw recently somebody sending mail thru smtp-server with
following (quite mad) address:
This prompted me to go thru smtpserver's rfc-821 scanner,
and alter the treatment of the local part ("plspgme!!!!")
to consider non-quoted bangs, and percents as specials.
Now the server treas this address as:
501 5.5.2 Path data: After a '!', a non alphanumeric element
Should similar scanners be added also into "sendmail"
program for analysis of envelope addresses ?
This did also prompt me to think of adding a quick
first line defence of verifying that the address has
valid top-level domain at the extreme right, or that
it is one of the local system names.
The question is, does this make sense ? Does it help ?
Should I implement that test even without policytest
facility being active ?
/Matti Aarnio <email@example.com>