Event:3257
Category: Journal Task
Description:
Failed to open distribution list [/O=TESTDOMAIN/OU=First Administrative Group/cn=Recipients/cn=TestDL].
Error:
Unspecified error (0x80004005)
LegacyDN: /O=TESTDOMAIN/OU=First Administrative Group/cn=Recipients/cn=TestDL
V-437-3257
Two common causes are:
1. Distribution Lists are hidden from the Global Address List.
2. Distribution Lists that no longer exist or are from a different Exchange environment.
Un-hide the Distribution List from the Global Address List.
Note: To archive the messages where the DL cannot be expanded, configure the Journal Policy setting "Failed DL expansion behavior" to "Archive item".
Event ID: 3257 will continue but the messages will be archived with an unxpanded DL.