I cannot do a wildcard search on SMTP domain in Ex55

If an LDAP query of, for example, mail=*@dirwiz.com is performed, Exchage 5.5 may respond with a DSA is unwilling to perform error.

Use the following steps to fix this:

#Start the Exchange 5.5 administrator program.
#Select the Exchange Site SimpleSync is connecting to.
#Select Protocols.
#Open LDAP (Directory) Site Defaults.
#Select the Search tab.
#Check Allow all substring searches (slow).
#Press OK.

There is no need to restart the Exchange services, the change will happen immediately.