您可以使用 qmail-tap 功能实现此目的:
# touch /var/qmail/control/taps
# vi /var/qmail/control/taps
# To tap whole emails of the domain:
.*@userDomainName.com:bcc@yourMailAddressToRcvCopy.com
# To tap individual email address:
email@userDomain.com:your@MailAddressToRcvCopy.com