On Fri, 16 Apr 2004, Greg Connor wrote:
Either receivers read the info and do whatever they want (which is
chaotic or at least quixotic) or receivers are not allowed to do
anything with the information (for example, 2821 says HELO should be a
fqdn but we MAY NOT reject it if it's not) and it's kind of useless.
Although you MUST NOT reject EHLO/HELO, that doesn't mean you can't reject
subsequent RCPT TO commands because you didn't like the greeting.
Tony Finch <dot(_at_)dotat(_dot_)at> http://dotat.at/