> The thing that scares me about greylisting is that the CEO's > stockbroker > might be running Groupwise 1.0 or Exchange 4.0 or BillyBob's > Very Good > Mailserver 2003 which may not handle the retry smoothly.
I'd also be concerned about some of these websites that generate emails using a command line mailer that does direct to MX delivery.. they may not even have the concecpt of queues/retries if it doesn't go first time. Paul
