[Exim] courier imap, exim & userdb

Hi All

Any one using exim with courier imap and userdb.dat ?

Can any one tell me what driver should i use ? ( smartuser, appenfile )

I tried this director which i found in the archives with the next error
:

failed to open /etc/userdb.dat as a db (v1) file: Invalid argument

vmail_smartlist:
    driver = smartuser
    local_parts = dbm;/etc/userdb.dat
    home_directory = "${if match{${extract{3}{|}\
        {${local_part_data}}}}{^mail=(.+)\\$}{$1}fail}"
    transport = vmail_delivery
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Canaan Surfing Ltd.
Internet Service Providers
Ben-Nes Michael - Manager
Tel: 972-4-6925757
Fax: 972-4-6925858
http://www.canaan.co.il
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