It uses the TTL returned by the DNS server, positive cache only. Tripp
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Len Conrad Sent: Friday, January 13, 2006 2:29 PM To: [email protected] Subject: RE: [IMail Forum] IMail 8.15: Queue Manager hanging >If your DNS is local you won't see that much time savings by using the >IMail DNS cache. But in a speed comparison of a memory read vs. a >network IO operation the memory read wins. sure, but we're talking about gaining a few ms in an SMTP session that last maybe 10,000 ms, plus the Imail complexity/work of managing its own DNS cache. What does the Imail DNS cache use for TTL? it does negative and positive answer caching? Len _____________________________________________________________________ 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/
