The rules constructs in 2010 seem the same as 2007 or 2003, so I don't understand what is wrong here:
When I send out some messages, I put my e-mail address (email@example.com) as the From, and a variant (firstname.lastname@example.org) as part of the To.
This worked in 2007 and 2003, but I get an error here.
Pics attached show both the rule and the error.
Any help would be a great help.