Outlook won't send to some addresses, message stays in Outbox
Posted on 2011-04-28
Hi - we have a user who has a handful of people they cannot get an email to. The message sits in the outbox, and if there are multiple recipients on the message, the other recipients will receive the message, but those few will not. There is no error message generated, the message just sits in the outbox until the user deletes it. They have triple-checked that the addresses are correct, and there's never a bounce-back message. It happens regardless of how the address was entered - hand-typed, nickname file, or contact record.
We're using Outlook 2007 in cached mode with Exchange 2007. They're not Working Offline. This user's machine was recently upgraded to Windows 7 from XP, so it's a fresh install of Office 2007 and a recently rebuilt .ost file. I've spent hours googling this issue and can't find another example with the same parameters. Any help would be greatly appreciated.