> > Jun 30 20:12:31 myhost postfix/submission/smtpd[28379]: warning: Unable > to > > look up MX host for my.virtual.domain: Host not found, try again > > > > Why is this happening? > > Because YOU configured something that requires MX lookups: > check_*_mx_access, reject_unknown_sender_domain, > reject_unknown_recipient_domain, and so on. > > Wietse
Thanks (and sorry -- trying hard but still learning). Reject_unknown_sender_domain was the culprit. I guess I've got to reconsider the smtpd restriction order. Michael
