I had a report from customers, they can't send all email to a partner.
I check a log on /var/log/qmail/qmail-smtpd/current and I got an error like this.
I don't have an idea to solve it, I try to restart svscan but It's not working.Code:
mf-dns-check: blocked with: your envelope sender domain must exist.
Thanks and sorry about my English.