exchange-server-2003-find-duplicate-email-address-already-exists
find duplicate email addresses (e.g. you get the error "This email address already exists in this organization)
dsa.msc Right click on the domain object and choose FIND -> Custom Search Advanced -> LDAP Query
proxyaddresses=smtp:sales@domain.com //or proxyaddresses=smtp:sal*
(We use "proxyaddresses" because this is the AD attribute for a mail enabled object)
If you have the utility AFIND
adfind -root -f proxyaddresses=smtp:sales@domain.com
Or you can export the list of email addresses:
ldifde -f c:\addresses.txt -l proxyaddresses
csvde -f emailaddresses.csv -l proxyAddresses //case sensitive!
If you've ever used LDP.exe
after connecting, binding (authenticating) -> View Tree
Right click on the domain name and choose SEARCH (scope subtree)
proxyaddresses=smtp:sales@domain.com
If you've found the object you can move it by right clicking on it and choosing Move!