Problems after upgrade from 8.1.2 to 8.2.1 (8.2.2-T3B)
Andrew J Cole
A.J.Cole at cbl.leeds.ac.uk
Mon Sep 20 15:05:37 UTC 1999
After an upgrade from 8.1.2 to 8.2.1 two weeks ago we have logged a
large number of additional and unexpected anti-spam rejections (Sender
domain must resolve) from the standard sendmail 8.9.3 checks.
On checking the three or four sites concerned which are valid e-mail
sources no obvious pattern emerges (to me) from their DNS entries other
than the fact that a lookup of subdomain.domain always fails unless we
have cached a lookup of their domain (see digs).
Rather than revert to 8.1.2 I took our servers forward to 8.2.2-T3B
which exhibits the same problem (the example is from 8.2.2-T3B).
Can anyone see a problem with the bc-bucharest.bcouncil.org entries?
Andrew
% dig any bc-bucharest.bcouncil.org
; <<>> DiG 8.2 <<>> any bc-bucharest.bcouncil.org
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 4
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUERY SECTION:
;; bc-bucharest.bcouncil.org, type = ANY, class = IN
;; Total query time: 26 msec
;; FROM: cblslca to SERVER: default -- 129.11.64.1
;; WHEN: Mon Sep 20 15:47:14 1999
;; MSG SIZE sent: 43 rcvd: 43
% dig any bcouncil.org
; <<>> DiG 8.2 <<>> any bcouncil.org
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 0
;; QUERY SECTION:
;; bcouncil.org, type = ANY, class = IN
;; ANSWER SECTION:
bcouncil.org. 1d21h35m30s IN NS NS1.TRINITE.CO.UK.
bcouncil.org. 1d21h35m30s IN NS NS.TRINITE.CO.UK.
;; AUTHORITY SECTION:
bcouncil.org. 1d21h35m30s IN NS NS1.TRINITE.CO.UK.
bcouncil.org. 1d21h35m30s IN NS NS.TRINITE.CO.UK.
;; Total query time: 309 msec
;; FROM: cblslca to SERVER: default -- 129.11.64.1
;; WHEN: Mon Sep 20 15:47:22 1999
;; MSG SIZE sent: 30 rcvd: 106
% dig any bc-bucharest.bcouncil.org
; <<>> DiG 8.2 <<>> any bc-bucharest.bcouncil.org
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 2, ADDITIONAL: 6
;; QUERY SECTION:
;; bc-bucharest.bcouncil.org, type = ANY, class = IN
;; ANSWER SECTION:
bc-bucharest.bcouncil.org. 1D IN MX 1 vmailntwks20.trinite.co.uk.
bc-bucharest.bcouncil.org. 1D IN MX 1 vmailntwks30.trinite.co.uk.
bc-bucharest.bcouncil.org. 1D IN MX 1 vmailnt2.trinite.co.uk.
bc-bucharest.bcouncil.org. 1D IN MX 5 vnet2.trinite.co.uk.
bc-bucharest.bcouncil.org. 1D IN MX 10 vnet.trinite.co.uk.
;; AUTHORITY SECTION:
bcouncil.org. 1D IN NS ns.trinite.co.uk.
bcouncil.org. 1D IN NS ns1.trinite.co.uk.
;; ADDITIONAL SECTION:
vmailntwks20.trinite.co.uk. 1D IN A 195.38.64.10
vmailntwks30.trinite.co.uk. 1D IN A 195.38.64.41
vnet2.trinite.co.uk. 1D IN A 195.38.64.9
vnet.trinite.co.uk. 1D IN A 195.38.64.2
ns.trinite.co.uk. 1D IN A 195.38.64.2
ns1.trinite.co.uk. 1D IN A 195.38.64.9
;; Total query time: 3957 msec
;; FROM: cblslca to SERVER: default -- 129.11.64.1
;; WHEN: Mon Sep 20 15:47:47 1999
;; MSG SIZE sent: 43 rcvd: 325
%
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