http://blogs.technet.com/exchange/archive/2006/04/19/425722.aspxRecently we have been seeing several issues in Support Services where Event ID 623 is being logged on the server. The symptoms include "Users unable to access their inbox", "Email backing up in the local delivery queue" and "Email awaiting directory lookup".en-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/exchange/archive/2006/04/19/425722.aspx#425739Thu, 20 Apr 2006 01:30:41 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:425739Danger WillSounds like the issue we worked through only yesterday with PSS for 5 hours. &nbsp;:)http://blogs.technet.com/exchange/archive/2006/04/19/425722.aspx#425940Fri, 21 Apr 2006 20:15:42 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:425940subject: exchangeWARNING: Next week I won't post the traditional &amp;quot;Weekend reading&amp;quot;. Actually I won't post anything, I'll...http://blogs.technet.com/exchange/archive/2006/04/19/425722.aspx#426077Sun, 23 Apr 2006 17:44:20 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:426077Henrik Walther Blog » Blog Archive » Troubleshooting Version Store issues - JET_errVersionStoreOutOfMemoryPingBack from <a rel="nofollow" target="_new" href="http://blogs.msexchange.org/walther/2006/04/23/troubleshooting-version-store-issues-jet_errversionstoreoutofmemory/">http://blogs.msexchange.org/walther/2006/04/23/troubleshooting-version-store-issues-jet_errversionstoreoutofmemory/</a>http://blogs.technet.com/exchange/archive/2006/04/19/425722.aspx#426892Mon, 01 May 2006 12:33:38 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:426892Garry <br> <br> <br> <br>Security <br>&amp;amp;nbsp; <br> <br> <br> <br> <br> <br>News <br>&amp;amp;nbsp; <br>Are Smart Cards the New Way of Life? - Solving the...http://blogs.technet.com/exchange/archive/2006/04/19/425722.aspx#426901Mon, 01 May 2006 12:34:37 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:426901Garry <br> <br> <br> <br> <br>Security <br>&amp;amp;nbsp; <br> <br> <br> <br> <br> <br>News <br>&amp;amp;nbsp; <br>Are Smart Cards the New Way of Life? - Solving the...