[exim] whitelist a domain

Hello,
i have running exim4 (4.80) on debian.
All is running fine, now I need to get a mail from google with a
response link, the link is only valid for a few minutes an is send from
different servers so it is greylist again and again.

I only use the "/etc/exim4/local_host_whitelist" file to whitelist my
own servers.

Is there a (debian) way to whitelist a domain like "*.bounces.google.com" ?
I have try to edit /etc/exim4/local_host_whitelist and restart/reconfig
exim but it does not work.

Regards,
Basti