[Exim] sender_verify_callback_domains

Hello,

Is there some way to make wildcards work in sender_verify_callback_domains?
Using 3.2 with openldap1, yeah, I know... very old.
Building another box with 4.3, but ldap changes
will take some time to sort out.

Example:
...
sender_verify = true
sender_verify_hosts = ! not.some.localnet.0/24 : ! not.some.ip.addr
sender_verify_hosts_callback = *
sender_verify_callback_domains = /etc/exim/callback
...

Where /etc/exim/callback contains:
# these are fine
somedomain.com
anotherone.org
yahoo.com # wont work since yahoo returns 250 ok at rcpt on bogus.

# possible?
*offers*.com
! somelocaldomain.com

Any thoughts or pointers appreciated.

Thanks,

Tim