Cannot send meeting invitations to multiple people
Posted on 2006-06-01
I have a user who is using Outlook 2003 with Exchange 2003. A problem has just started where sending a meeting invitation to mulitple people will result in this error:
This message could not be sent. Try sending the message again later, or contact your network administrator. Error is [0x80070057-00000000-00000000].
This is seemingly only happening when the meeting invite is a local user (in the same company) and an external user (An internet email address). It works if she sends two different invitations to both separately, but if you try to send it to both at the same time, that is when the error occurs. The user is using Cached mode. All other functions of Outlook are working. I can verify for a fact that the email addresses that it is being sent to are correct.
I have searched on the net for some solutions, but have not found much. Any help will be appreciated.