Question : Help with mysql delete duplicates query

I want to delete  they complete entry in the database where the value in field E is duplicated.

It seemed to me that this should work:
delete from shipments where E in (select  E  from shipments group by E having  count(*) > 1 ORDER BY `flo_shipments`.`E`  ASC)

The select statement does work, but when I try the "delete where in" statement I get:
#1093 - You can't specify target table 'flo_shipments' for update in FROM clause

I'd apprecitate your ideas on how to do this.

1:	delete from shipments where E in (select E from shipments group by E having count(*) > 1 ORDER BY `flo_shipments`.`E` ASC)

Answer : Help with mysql delete duplicates query

So, come to find out, the reason for the slow operation and frequent crashing is due to a surplus of emails being sent to one of the addresses connected to my Thunderbird.  There were some 300,000+ emails in just one of the boxes.  Since the emails have started getting deleted, Thunderbird has stopped crashing on me and is slowly but surely getting faster.