Graham Murray wrote:
Graham Murray <graham(_at_)webwayone(_dot_)co(_dot_)uk> writes:
We should be concerned about what may or may not be done or
implemented in MUAs.
Oooops That should say "We should not be concerned....."
^^^
There are many instances were the check will be done after the SMTP
transaction. SpamAssassin is an obvious example.
Plus, the MUA checking is what makes this valuable against phishing.
Yakov