Date: Wed, 17 May 2023 11:48:07 -0700 From: vagabond <vagabond@blackfoot.net> To: Freebsd Questions <questions@freebsd.org> Subject: sendmail error, "MX list for mydomain.com points back to server.mydomain.com" Message-ID: <303e35e4d89e68dcd9863239dcda568e@blackfoot.net>
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I'm at my wits end.
running 12.4 release, recently upgraded from 12.3
I can't receive any mail,
although I can send (at least to an external account of mine) ok.
But using the "mail" command on the local machine has the same problem
as incoming
mail from outside, e.g.
mail -s "local to local" user@mydomain.com
fails the same way incoming mail from outside fails:
/var/log/maillog:
SYSERR(root): MX list for mydomain.com. points back to mydomain.com
sm-mta[42872]: 34HHlVD9043017: to=<user@mydomain.com>, delay=00:00:00,
xdelay=00:00:00, mailer=esmtp, pri=33742, relay=mydomain.com.,
dsn=5.3.5, stat=Local configuration error
sm-mta[42872]: 34HHlVD9043017: 34HHlVDA043017: DSN: Local configuration
error
sm-mta[42872]: 34HHlVDA043017: Losing ./qf34HHlVDA043017: savemail
panic
sm-mta[42872]: 34HHlVDA043017: SYSERR(root): savemail: cannot save
rejected email anywhere
Running dns and mail from same box.
my isp has bogus dns entries for my domain; trying to get that
straightened out,
but they are extremely slow responding.
Regardless, since this is happening on delivery to the local machine,
sendmail should be dealing with info returned from my local server,
right?
Not sending queries upstream for mydomain.com?
The local zone file looks like this:
$TTL 3600
@ IN SOA myserver.mydomain.com. root.mydomain.com. (
2023051705
14400 ; Refresh delta, seconds (4 hrs (recommended))
3600 ; Retry delta, if refresh fails, seconds (1 hr,
recommended)
3600 ; Expire, seconds (1 hrs)
600 ) ; Minimum time-to-live, seconds (10 min, for testing)
IN NS myserver.mydomain.com. ; authoritative name server
IN NS ns.secondary1.com.
IN NS ns.secondary2.com.
mydomain.com. IN A aa.bb.cc.dd ;
myserver IN A aa.bb.cc.dd ;
mydomain.com. IN MX 10 myserver.mydomain.com. ;
mydomain.com. IN SPF "v=spf1 +mx -all" ; allow MX record IPs to send,
no others
mydomain.com. IN TXT "v=spf1 +mx -all" ; allow MX record IPs to send,
no others
ns IN CNAME myserver ; nameserver cannot be CNAME; here for
refs from stale dns
Queries from outside and inside to mydomain.com seem to work fine, e.g.
dig @mydomain.com mydomain.com -t mx
;; ANSWER SECTION:
mydomain.com 3600 IN MX 10
myserver.mydomain.com.
;; ADDITIONAL SECTION:
myserver.mydomain.com. 3600 IN A aa.bb.cc.dd
/etc/resolv.conf:
nameserver 127.0.0.1
What does sendmail do to resolve the MX that could make it come to this
conclusion?
I don't see anything more helpful in a debug log or the sendmail README.
Suggestions for how to debug?
Thanks,
Gary
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