On Tue, 18 May 2004 Valdis.Kletnieks@vt.edu wrote: : > Quite frankly, I'm at a loss as to why anyone would wish to accept : > and queue mail that they cannot deliver. : Well.. you're somewhat right - *IF* the mail gateway is able to make the : determination quickly and definitively, That "if" is rapidly becoming a *requirement*. I invite you to participate in SPAM-L@PEACH.EASE.LSOFT.COM is you somehow feel differently. : Traditionally, "accept and queue" was a reasonable way for a gateway : mail relay to function (and if you think about it, it's usually the ONLY way : for an off-site secondary MX to function). Then make the offsite MX use a user list, or else don't use an offsite MX at all. Sending mail exchangers will retry when the recipient servers are down; that's mandated by SMTP. You don't need an offsite secondary MX that has no access to a valid address list. Sorry to burst your bubble, but as of this year, where the levels of virus bounce spam as hreached obscene levels, this is no longer a valid excuse. : For high-volume sites, there are also firewall state issues Then upgrade your firewall. This is certainly not a valid excuse. -- -- Todd Vierling <tv@duh.org> <tv@pobox.com>