" Selecting users from the address book instead of auto-complete seems to resolve it."
Users that were deleted and came back perhaps. Or a name that was reused? Delete those entries from autocomplete. Start a message and when they show up tap the delete key. Then after using the address book the correct one will be in autocomplete. -----Original Message----- From: Tom Miller [mailto:tmil...@sfgtrust.com] Sent: Wednesday, February 20, 2013 11:07 AM To: MS-Exchange Admin Issues Subject: RE: Internal user failed to send (UNCLASSIFIED) Several people are getting this message, all internal staff, different recipients though. I can't imagine that a number of staff would simultaneously have the same issue. Selecting users from the address book instead of auto-complete seems to resolve it. -----Original Message----- From: Kent, Larry J CTR (US) [mailto:larry.j.kent2....@mail.mil] Sent: Wednesday, February 20, 2013 10:49 AM To: MS-Exchange Admin Issues Subject: RE: Internal user failed to send (UNCLASSIFIED) Classification: UNCLASSIFIED Caveats: NONE Did this error occur just sending to this one user or was he part of a mass mailing or send to a distribution list? I believe there is a limit of 5000 recipients per message for Exchange 2010 -----Original Message----- From: Tom Miller [mailto:tmil...@sfgtrust.com] Sent: Wednesday, February 20, 2013 10:35 AM To: MS-Exchange Admin Issues Subject: Internal user failed to send Anyone ever seen anything like this: Your message did not reach some or all of the intended recipients. Subject: sample Sent: 2/20/2013 8:59 AM The following recipient(s) cannot be reached: 2/20/2013 9:00 AM This message could not be sent. Try sending the message again later, or contact your network administrator. Error is [0x80004005-00000000-00000000]. on 2/20/2013 9:00 AM This message could not be sent. Try sending the message again later, or contact your network administrator. Error is [0x80004005-00000000-00000000]. These are all internal person. I've seen a few reports like this since we started to use load balancers. Exchange 2010 SP2. --- 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 Classification: UNCLASSIFIED Caveats: NONE --- 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