On May 18, 2009, at 3:56 AM, John Fawcett wrote:
Can anyone see a reason for not using always ${us...@${domain} instead of ${us...@${nexthop}?
${domain} is a somewhat recent addition to Postfix. I guess the docs could say to use ${domain} instead of ${nexthop} if Postfix is newer than X (should look up what version added that).