<creation value="2010-02-01T11:50:23-05:00"/></contentAttachment></payload><payload><contentAttachment><contentType value="application/pdf"/><url value="http://example.org/docs/AB12345"/><size value="104274"/><hash value="SGVsbG8gdGhlcmU="/><creation value="2010-02-01T10:57:34+01:00"/></contentAttachment></payload></Communication>

Attachment which is unsolicited

          <creation value="2010-02-01T11:50:23-05:00"/></contentAttachment></payload><payload><contentAttachment><contentType value="application/pdf"/><url value="http://example.org/docs/AB12345"/><size value="104274"/><hash value="SGVsbG8gdGhlcmU="/><creation value="2010-02-01T10:57:34+01:00"/></contentAttachment></payload></Communication>