[Typo3] direct mail csv import issue

[christian oettinger]

Hi all,


When importing a csv with the import engine in direct_mail, I would like 
the double entries in my csv to be automatically sorted out. I thought 
this is a funtion of the tool (I put the import engine to "Update 
existing records based on the email-field being unique.") but it will 
not work.

any hints?

oe (christian)