Delete repeated emails

[Pleo]

A user accnt will receive all his dept's staff auto-forward emails, so he
will receive a lot of emails and most of them are repeated. How can I find /
delete the exactly same / repeated emails? Thanks.

 

[BillR [MVP]]

one solution at cost is:
"Duplicate Email Remover"
http://www.mapilab.com/outlook/duplicate_remover/

free trial is available.
I haven't tried it (yet) so can't comment on it's effectiveness.