Outlook 2010 connected to SBS 2011 Std.
One user in the office gets "Cannot send this item" when trying to forward e-mails with attachments. A bit of Googling led me to try forwarding without using the normal corp. signature for forwards and replies...which worked.
Their normal corporate signature has lots of graphics, so I created one with just text...and an e-mail address. Not too surprisingly, that failed, so I removed the e-mail address. That worked.
Sending new e-mails with attachments using the normal corp. signature works just fine.
Forwarding or replying to e-mails with attachments using the text only signature works just fine, but it's ugly.
Understandably, the client, a partner, is not really happy with this workaround because their signature works for everyone else in the office.
Would appreciate any suggestions.