Hi All
Just to give you an update on what happened here:
- the old platform has been removed/migrated last fall; the A record has been removed in
january
- all active customers and domains have been migrated
- we have no customer complaints
- there are some customers, which haven't updated their DNS after several reminders (I
suppose these are customers which decided not to continue with the service)
- the technical people checked their config and are not missing any entries
-> so in short: customer / domain owner problem not Swisscom.
Wish you a nice weekend,
-steven
-----Ursprüngliche Nachricht-----
Von: <swinog-bounces(a)lists.swinog.ch> im Auftrag von Daniel Stirnimann
<daniel.stirnimann(a)switch.ch>
Datum: Freitag, 7. Februar 2020 um 11:47
An: "swinog(a)swinog.ch" <swinog(a)swinog.ch>
Betreff: Re: [swinog] Missing DNS A records for several domains hosted by
swisscom.com
It looks like that the affected domain names have not been updated to
the (new) MX hosts:
mx01.mailsecurity.swisscom.com.
mx02.mailsecurity.swisscom.com.
So, I guess its a domain owner problem and not a Swisscom problem.
For example, spital-lachen.ch used to have
mtainXX.mailsecurity.swisscom.com. until June 2019 and has since moved
to
mxXX.mailsecurity.swisscom.com.
Daniel
On 07.02.20 10:45, Tobi wrote:
Hi
hope someone from Swisscom reads here. We're currently seeing that DNS A
records for MX hosts of several domains disappeared. They all using
as MX record. But there are no A records for those MX
; <<>> DiG 9.11.14-RedHat-9.11.14-2.fc31 <<>>
mtain01.mailsecurity.swisscom.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 47048
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;mtain01.mailsecurity.swisscom.com. IN A
;; AUTHORITY SECTION:
swisscom.com. 574 IN SOA
dns3.swisscom.com.
admin\.dns.swisscom.com.
42532 21600 3600 604800 600
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fr Feb 07 10:42:03 CET 2020
;; MSG SIZE rcvd: 113
; <<>> DiG 9.11.14-RedHat-9.11.14-2.fc31 <<>>
mtain02.mailsecurity.swisscom.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 56271
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;mtain02.mailsecurity.swisscom.com. IN A
;; AUTHORITY SECTION:
swisscom.com. 574 IN SOA
dns3.swisscom.com.
admin\.dns.swisscom.com.
42532 21600 3600 604800 600
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fr Feb 07 10:42:03 CET 2020
;; MSG SIZE rcvd: 113
According to our passive DNS data there are at least 63 domains using
one of these hosts as their MX.
--
Cheers
tobi
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