Participants in a route receive routing slip e-mail messages that contain Approve/Reject URLs they can use to respond to the message. This approval feature requires an e-mail client that supports the mailto: URL feature, including the ability to specify the subject line. The following e-mail clients have been tested and support the mailto: URL feature:
Microsoft Outlook clients also display voting buttons in routing slip messages. Users can either use the voting buttons or the Approve/Reject URLs.