2003 with all the packs/patches (soon to be 2010).
I did find a Blackberry KB article that pretty much just said "if this happens restart the BES", and has not other useful info in it. From: Martin Blackstone [mailto:mblackst...@gmail.com] Sent: 26 April 2011 18:26 To: MS-Exchange Admin Issues Subject: RE: BES - "Lookup Failed"? What is your Exchange version? From: Paul Hutchings [mailto:paul.hutchi...@mira.co.uk] Sent: Tuesday, April 26, 2011 10:14 AM To: MS-Exchange Admin Issues Subject: BES - "Lookup Failed"? Appreciate this is the Exchange list but I also expect many of you use BES so maybe someone's encountered this. We have a dedicated BES Express VM and around a dozen Blackberry's right now. What seems to happen randomly is that sending mail on some/all of the Blackberry's fails, as does the ability to do address book lookups - you just get "lookup failed" on the Blackberry, and restarting the BES fixes it. The BES Express server is running 2003 R2 x64 and the BES Express is 5.0.2.29. Any suggestions would be great. Thanks, Paul ________________________________ MIRA Ltd Watling Street, Nuneaton, Warwickshire, CV10 0TU, England Registered in England and Wales No. 402570 VAT Registration GB 100 1464 84 The contents of this e-mail are confidential and are solely for the use of the intended recipient. If you receive this e-mail in error, please delete it and notify us either by e-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the e-mail as this is prohibited. --- 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