[exim] Build domain list from file?

If I have a file as below, and I would like to populate a List in
Exim.conf with the values in the first column, can that be done?


So here I would like SympaDomains = ffd.nu : lists.mupp.net


scooter:/var/mail/bjorkriset# cat /etc/sympa-virtual-mappings.conf
ffd.nu: www.ffd.nu
lists.mupp.net: lists.mupp.net
scooter:/var/mail/bjorkriset#