You can't really do relational-style table queries like this. You need to
either know the email address first, or the uid/cn.
You likely need a script or something else to do this kind of search. First
you'd get each unique mail, then you would search for each mail, what uid/cn
exist.
Dear List,
What ldapsearch options/ filters I need to use to find all the multiple uid
/cn's entries associated to one single email address in my DS with > 5k
entries? ( I do not know the email address or uids values)
Thank you
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389-users