[exim] hostlist ipv6

I have this in exim.conf

hostlist relay_hosts = net-lsearch;/etc/virtual/pophosts :
/etc/virtual/trusted_ips : 127.0.0.1

Can I add : ::1 to the end to allow IPv6 localhost connections?

hostlist relay_hosts = net-lsearch;/etc/virtual/pophosts :
/etc/virtual/trusted_ips : 127.0.0.1 : ::1