On Mon, 26 May 2003 00:56:19 CDT, "Eric A. Hall" <ehall(_at_)ehsco(_dot_)com>
said:
- RCPT TO response codes signifying acceptance levels, EG:
- 250 (default) what the law allows by default
- 255 (stiff) no solicitations at all
- 259 (extreme) no trespassing -- authorized senders only
- 25x allows interoperability but other codes may be more useful,
(a) this isn't usefully backwards-compatible - it only helps if you're
talking to another upgraded MTA. As such, given the usual glacial upgrade
speed, this isn't a short-term solution.
- especially considering different jurisdictions will likely need
their own codes
See Don Eastlake's I-D:
http://www.ietf.org/internet-drafts/draft-eastlake-xxx-05.txt
You're looking at a lot of the same issues.
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