Stub objects are created with a truncated LegacyExchangeDN (LEDN) attribute (4280793)

If you examine a stub object using ADSIEdit.msc and look at LegacyExchangeDN attribute, it is shorter than expected, and does not contain the Organization section. For example: 

cn=Recipients/cn=jsmith

This can result in stub objects not appearing in the GAL correctly (the SMTP addresses can be empty). Mail flow can also be impacted when these stubs are selected from the GAL to send an email. For example, if recipients try to Reply to All, the address for the stubs is resolved to something such as:

IMCEAEX-Cn=Recipients_cn=jsmith@subscribingdomain.com

If a Free/Busy sync is also used, the following errors may be reported by QCS:

Error :<F/B Receiver> (38006) Unable to find the corresponding free/busy folder for <cn=Recipients/cn=user1>. Code : 0x80047f09,Description : (null)

Error :<F/B Receiver> (38006) Unable to find the corresponding free/busy folder for <cn=Recipients/cn=user2>. Code : 0x80047f09,Description : (null)

The correct syntax for the LEDN should be something similar to the following:

Exchange 2000/2003:
/o=SubscribingORG/ou=First Administrative Group/cn=Recipients/cn=jsmith

Exchange 2007/2010:
/o=SubscribingORG/ou=Exchange Administrative Group (<GUID>)/cn=Recipients/cn=jsmith