2.1.3.4.6 vCard Generation

To generate a vCard attachment, clients attach a Contact object, as specified in [MS-OXOCNTC], to a message. For MIME writers, an attached message with a value for the PidTagMessageClass property ([MS-OXCMSG] section 2.2.1.3) that begins with "IPM.Contact" is the trigger for generating a vCard attachment in a MIME message.<102> The vCard format is generated from Contact object properties, as specified in [MS-OXVCARD]. vCard information is included in outbound MIME messages as a file attachment, as specified in section 2.1.3.4.2.2.

The vCard MIME part MUST use a Content-Type header value of "text/directory" with a profile value of "vCard".<103> The character set is set to UTF-8. The vCard content uses quoted-printable encoding, as specified in [RFC2045] section 6.7.