I have created a rule which defers sending e-mails for 2 minutes in outlook 2010 which connects to an exchange 2010 server. All works fine except for one user, on her machine the rule is identical but for some reason when it is switched on it stops the sent items going into her sent folder. Switch it off and all goes back to normal! Any ideas why this is happening? Also, does anyone know a way to tweak this rule so it only affects e-mails going outside of the organisation?