On Fri, Mar 5, 2010 at 02:28, Graeme Fowler <graeme@graemef.net> wrote:
Fresh operational content: one of the reasons services like Spamcop occasionally list services like Facebook is that they don't honour 5xx responses to RCPT TO:. I'd offer some statistics but I'm concerned that the legal brigade will jump down my throat, but I suggest that anyone running a system like an academic mail platform take a look at the number of invalid recipients services like Facebook try to deliver. If they stopped doing that they'd be a long way towards better behaviour, IMO.
As long as we're going off-topic, might as well go all the way :V How long should a sender (say, Facebook) retain a database of 5xx SMTP responses? Just because jimbob@school.edu doesn't exist today, doesn't mean that James Robert Jones won't enroll in the fall and get jimbob@ as his school-provided email address. David Smith MVN.net