> Most mail gateways that I've worked with deal with this by rejecting > mail when no recipients would accept the message. For messages with > mixed results, the message is accepted and delivered to some and > quarantined for others.
Gordon, could one potentially change the replies after the first RCPT TO to 4xx responses, to ensure the incoming message is being delivered to exactly one user? Admittedly, this would require a change inside courier itself (unless MAXRCPT applies to incoming SMTP transactions too?), and I could see poorly implemented SMTP servers trying to deliver getting gummed up by it… Bernd, in practice, what I’ve found is taking the most lenient spam filtering threshold for a group of recipients “generally” works. Most spam we’ve seen coming in to multiple users gets delivered over multiple connections, not in one batch. -Jeff ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
