Hello, On 4.8 I was using smtpd to relay periodic mails. The box is a firewall and the resolver is not configured at all.
smtp.conf # This is the smtpd server system-wide configuration file. # See smtpd.conf(5) for more information. listen on lo0 map "aliases" { source db "/etc/mail/aliases.db" } accept for local alias aliases deliver to mbox # smtp accept for all relay via 129.20.xxx.xxx That worked fine on 4.8, but with 4.9 the box does not send any mail : /var/log/mailog: smtpd[4269]:1317598201.5Tsv7GvPDRFc1Ozt:from=<root@YYYYY>, size=6325, nrcpts=1, proto=ESMTP, relay=0@localhost [IPv6:::1] smtpd[30344]: 1317598201.5Tsv7GvPDRFc1Ozt: to=<logadmin@YYYYY>, delay=1, relay=(none) [], stat=LocalError (Unable to resolve DNS f or domain) Any idea? Thanks, regards.