Yahoo employs greylisting of messages as part of their email security approach.
I wouldn't mind if they'd do it on the first messages of the day, or first set from that IP or whatever, but they seem to do it for every email. You might want to enable domain keys or DKIM and see if they handle those messages more expeditiously.... *ASB *(My XeeSM Profile) <http://XeeSM.com/AndrewBaker> *Exploiting Technology for Business Advantage...* * * On Fri, Sep 10, 2010 at 11:58 AM, Bill Humphries <nt...@hedgedigger.com>wrote: > Hi all, > > So, we have recently installed exchange 2010 in our shop to get some > experience with it. i have some weird issue. It seems that messages going > to yahoo.com are sitting in the queue on the edge transport server and > giving our users delayed message NDRs. I have used telnet from the machine > to send a message to yahoo without a problem. > > If I track one of these messages using the new nifty tracking in OWA it > tells me the messages have been handed off: > > *Submitted > 9/10/2010 10:37 AM > The message was submitted. Transferred > 9/10/2010 10:37 AM > The message was successfully handed off to a different e-mail system. This > is as far as we can track it. > > *Any ideas what could could be causing this or what else I should be > looking at? > > This Exchange is a totally different beast from 2003. > > Bill > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to listmana...@lyris.sunbeltsoftware.com > with the body: unsubscribe ntsysadmin > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
