Yahoo is known for doing tempfails (4xx) on delivery attempts. I recall also that Exchange has had various issues with delivery retrying behavior in certain cases though I'm not sure if 2007 suffers.
Best bet is to turn on protocol logging and check out any web links that are present in yahoo replys. In general, yahoo likes it if email is signed with DKIM and all the other usual suspects are squeaky clean (HELO, reverse DNS, SPF, etc...). Consider an appliance of some kind (Ironport, barracuda, roll your own Linux, etc...) between Exchange and the Internet. ~JasonG > -----Original Message----- > From: King's Kid [mailto:kingskid1002...@yahoo.com] > Sent: Tuesday, November 30, 2010 09:49 > To: MS-Exchange Admin Issues > Subject: Re: Email delayed going to one specific domain > > Our consultant is not getting our emails. The last email he received from > us was 11/26 at 8:30pm. He hasn't received any since but he is getting > emails from his other clients with no problem and when I email him using my > Yahoo address it goes through with no delay. > > No error messages in Exchange or any of the event logs. The messages to > him are just queued. All other emails are being delivered with no delay. > > BJ > > > When the whole world is against you paranoia is just good sense - Johnny > Fever > > > ________________________________ > > From: Michael B. Smith <mich...@smithcons.com> > To: MS-Exchange Admin Issues <exchangelist@lyris.sunbelt-software.com> > Sent: Tue, November 30, 2010 8:44:33 AM > Subject: RE: Email delayed going to one specific domain > > > > What does your consultant say? :-) > > > > Does exchange give an error or does it just queue the message? > > > > Regards, > > > > Michael B. Smith > > Consultant and Exchange MVP > > http://TheEssentialExchange.com > > > > From: King's Kid [mailto:kingskid1002...@yahoo.com] > Sent: Tuesday, November 30, 2010 9:41 AM > To: MS-Exchange Admin Issues > Subject: Email delayed going to one specific domain > > > > Hi all, > > > > Yesterday our Exchange server stopped sending email to one specific domain > (our consultant). The only change that was made to the server was I put in > a rule regarding the Deleted items folder for our users which I have since > deleted. > > > > All other emails are being sent correctly and our consultant is receiving > emails from other clients. > > > > We recently upgraded to this version of Exchange and I'm still learning all > the ends and outs. I googled the issue and didn't come up with anything. > > > > Any help would be appreciated. > > > > We running Exchange 2k7 on Small Business Server 2k8. > > > > Thanks > > > BJ > > > > When the whole world is against you paranoia is just good sense - Johnny > Fever > > > > --- > 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 exchangelist > > --- > 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 exchangelist > > > --- > 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 exchangelist --- 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 exchangelist
