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Find Exchange Mailbox with a certain alias

 Today I was asked to find the mailbox that held a certain alias, or additional email address

The Exchange Admin Web client wasn't very helpful, but LDAP was with the following query...


searcher.Filter = $"(proxyaddresses=smtp:sales@company.com)";


The trick with the ldap query was I needed to include the smtp: prefix. 

In the end, it wasn't a mailbox or sharedbox, but rather a distribution list, and LDAP didn't care. 





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