Hi,
I'm facing a problem with SA, that seems to be related to askdns.
Mail server on Ubuntu 22.04 LTS, spamassassin 3.4.6 via exim4. Local
bind9 DNS server.
Mail received from webex.com does not get SPF checked, which in turn
triggers a local rule:
meta DMARK_REJECT !(DKIM_VALID_AU || SPF_PASS || NO_RELAYS)
Webex does not use DKIM, but it has a kind of complex SPF setup, that
may be ok (not 100% sure, but they are cisco after all ?)
After enabling debug I can see that the TXT query returns 0 RRs:
Sep 16 11:45:39 doors spamd[462278]: askdns: answer received, rcode
NOERROR, query IN/TXT/webex.com, answer has 0 records
while dig has a different idea:
dig -t TXT webex.com
;; Truncated, retrying in TCP mode.
; <<>> DiG 9.18.1-1ubuntu1.1-Ubuntu <<>> -t TXT webex.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 56230
;; flags: qr rd ra; QUERY: 1, ANSWER: 26, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: b7c24959678df920010000006324d83008d33f7982f281d1 (good)
;; QUESTION SECTION:
;webex.com. IN TXT
;; ANSWER SECTION:
webex.com. 300 IN TXT
"google-site-verification=qXk-s_bdPaqiuaDN9jJCQjvNyw_hVkxXDhkm-1mZn14"
webex.com. 300 IN TXT "slimtesttxt20170824002"
webex.com. 300 IN TXT
"QuoVadis=c1bf1f71-e21f-4ef5-92d9-3285c488767a"
webex.com. 300 IN TXT
"google-site-verification=BEWshakJYRMouwSQKX3vk5144-qUL1wwUWLU-XtfQ"
webex.com. 300 IN TXT "slimtesttxt20170824001"
webex.com. 300 IN TXT "MS=ms74589643"
webex.com. 300 IN TXT
"google-site-verification=BEWshakJYRMouwSQKX_3vk5_144-qUL1wwUWLU-XtfQ"
webex.com. 300 IN TXT
"identrust_validate=5g4Ebjbv8fCTROWcobqHmDRBtTU+zBMHM1AiuGdcCbtd"
webex.com. 300 IN TXT "MS=ms61160488"
webex.com. 300 IN TXT
"QuoVadis=5a740d9e-6664-4d4c-8d87-716da9d530a7"
webex.com. 300 IN TXT "MS=ms67549965"
webex.com. 300 IN TXT
"identrust_validate=08N0ASND+yUGXL08IVK8mdMWNhvz1ZqiXe6WCC5eI2e/"
webex.com. 300 IN TXT "v=spf1
redirect=_spf.webex.com"
webex.com. 300 IN TXT "lqucp0f6u7alqi7kgrjo5vsov5"
webex.com. 300 IN TXT
"QuoVadis=eed4c791-aa21-4b45-8c91-2d83a93af871"
webex.com. 300 IN TXT "lrg2pr6u4ubansuv47jtmmfd3p"
webex.com. 300 IN TXT " ms93683787.msv1.invalid"
webex.com. 300 IN TXT
"amazonses:n3XkGYyvmC8SrhX+CqICjY4eWnyKFwPo6mdHTMsmeu4="
webex.com. 300 IN TXT "9cef3rr776cnjs1cu53q6hrium"
webex.com. 300 IN TXT
"google-site-verification=3NhfQ1u_2ogGy3CA8qlIfFtMlW_nhx-VO85vAhT15a0"
webex.com. 300 IN TXT
"identrust_validate=bCd4oCoacz6pZ8C8/IRU0rItc1avij7uuIRBeMwUxa8T"
webex.com. 300 IN TXT
"google-site-verification=t2i1Swk8XPQDj6Llz_4Uxu3OKL3wfO_aaxYylFmQ8MU"
webex.com. 300 IN TXT "MS=ms93683787"
webex.com. 300 IN TXT
"google-site-verification=Z4Iwv_W8wkGKrlaPKLdcm3C_LDCydAJD6z3L1MAP7DI"
webex.com. 300 IN TXT
"google-site-verification=fHXTAHXgtW5_Dzt4PHZKGF2PAI0r6PEHqmHJbkxo4_k"
webex.com. 300 IN TXT
"google-site-verification=D1PXZV2EBUXGvgJdUWr3cahNprUgckDpzo8MgniDQHk"
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1) (TCP)
;; WHEN: Fri Sep 16 17:10:24 -03 2022
;; MSG SIZE rcvd: 1552
which leads me to believe askdns might not support tcp for resolving ?
In any case, help ?
TIA
--
Carlos G Mendioroz <t...@huapi.ba.ar> LW7 EQI Argentina
