> Given the very high, increasing, and universal %age of msgs to unknown > recipients, any MX must have the db of known recipients, or the MX will > become inundated with undeliverable delivery failure/postmater msgs as the > next-hop mailbox server rejects unknown recipients.
That is one of the nice features of the gateway we are using; it validates the recipient on the destination mail server before accepting the connection. Recipient validation can be cached for a specified number of hours to improve performance. > very large deferred queues cause slow-down problems for any MTA, but > should > not cause any other problems (like total failure). > > If an MX is going to be in the mail relay business, it really needs to be > able to handle/hold 2 days of non-deliverable mail "gracefully". I agree. Daniel. > > _____________________________________________________________________ > http://IMGate.MEIway.com : free anti-spam gateway, runs on 1000's of sites > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
