19. A method performed by a first extensible markup language (XML) document management (XDM) server, the method comprising: receiving an XML document command protocol (XDCP) forward request specifying a first uniform resource identifier (URI) corresponding to contact information to be shared with a recipient according to a contact share request from a client, the XDCP forward request further specifying a second URI corresponding to the recipient; providing the contact information to a second XDM server associated with the recipient after receiving a message from the second XDM server requesting the contact information, the message to occur if the recipient has accepted forwarding of the contact information but not if the recipient has rejected forwarding of the contact information.
19. A method performed by a first extensible markup language (XML) document management (XDM) server, the method comprising: receiving an XML document command protocol (XDCP) forward request specifying a first uniform resource identifier (URI) corresponding to contact information to be shared with a recipient according to a contact share request from a client, the XDCP forward request further specifying a second URI corresponding to the recipient; providing the contact information to a second XDM server associated with the recipient after receiving a message from the second XDM server requesting the contact information, the message to occur if the recipient has accepted forwarding of the contact information but not if the recipient has rejected forwarding of the contact information. 20. A method defined in claim 19 wherein preference information is used to determine whether the recipient has accepted forwarding of the contact information.