I am starting to get the error above from my users on my domain. I have tried sending the mail from the affected computer an have seen the errormessage a number of times. When I try sending to the same email address from my own account, it works fine. And when the user tries to send the message again from their account, after my successful attemt, it works from their account as well.
I am stumped. I have checked that the recipient address is spelled correctly, I have used the autocomplete and typed it out correctly, I have even checked the unwanted mail folder and lists. I assume that Outlook is connected to the mailserver, since the errormessage seems to be coming from the server. When I check the spamfilter, I can tell that the message never leaves the server.
It is happening on Outlook from Office 2007, Windows 7 with an Exchange 2007 mailserver.
Any input will be appreciated…
Thanks in advance!