Host or domain name not found

[zawadix]

Hello,
Iam using zimbra with proxmomx gw. Everything looks ok except one log, only with protonmail.com

(Host or domain name not found. Name service error for name=protonmail.com type=MX: Host not found, try again)

root@mailsystem:~# dig protnmail.com

; <<>> DiG 9.10.3-P4-Ubuntu <<>> protnmail.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38944
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 2, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;protnmail.com. IN A

;; ANSWER SECTION:
protnmail.com. 300 IN A 198.58.118.167
protnmail.com. 300 IN A 96.126.123.244
protnmail.com. 300 IN A 45.33.2.79
protnmail.com. 300 IN A 45.33.23.183
protnmail.com. 300 IN A 45.56.79.23
protnmail.com. 300 IN A 45.79.19.196

;; AUTHORITY SECTION:
protnmail.com. 172800 IN NS ns1.mytrafficmanagement.com.
protnmail.com. 172800 IN NS ns2.mytrafficmanagement.com.

;; Query time: 139 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri Jul 24 12:40:38 CEST 2020
;; MSG SIZE rcvd: 194

Please help.
Regards

[phoenix]

Not much information in that post for anyone to help you. Always start with the ZCS version, post the full output of the following (always post this):

Code: Select all

zmcontrol -v

Where does this error message occur and why are you using the Proton Mail MX server?

[zawadix]

Sorry. My mistake.

Release 8.8.15.GA.3829.UBUNTU16.64 UBUNTU16_64 FOSS edition, Patch 8.8.15_P2.

Regards

[phoenix]

There were two questions in my post.

[zawadix]

Where does this error message occur and why are you using the Proton Mail MX server?

This is log from Proxmox Mail Gateway when i tried to send email to protonmail.com

Jul 24 12:33:59 mx postfix/smtpd[2821]: connect from localhost.localdomain[127.0.0.1]
Jul 24 12:33:59 mx postfix/smtpd[2821]: B80C91414BB: client=localhost.localdomain[127.0.0.1], orig_client=unknown[192.168.210.100]
Jul 24 12:33:59 mx postfix/cleanup[3000]: B80C91414BB: message-id=<b176545d23bd9@mydomian.coml>
Jul 24 12:33:59 mx postfix/smtpd[2821]: disconnect from localhost.localdomain[127.0.0.1] ehlo=1 xforward=1 mail=1 rcpt=1 data=1 commands=5
Jul 24 12:33:59 mx postfix/qmgr[30275]: B80C91414BB: from=<me@mydomain.com>, size=87452, nrcpt=1 (queue active)
Jul 24 12:33:59 mx postfix/smtp[2868]: B80C91414BB: to=<him@protonmail.com>, relay=none, delay=0.07, delays=0.07/0/0/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=protonmail.com type=MX: Host not found, try again)

[phoenix]

Then I'd suggest your question should be 'why does the PMG not resolve the address', this would appear to not be a ZCS problem. Did you run a DNS from the PMG server for the Protonmail server?

[zawadix]

Im not useing a dedicated DNS server on the PMG. I use operator DNS

[phoenix]

Im not useing a dedicated DNS server on the PMG. I use operator DNS

I didn't ask that, I asked if you do a dig for the proton mail server on the PMG server do you get a DNS answer? Are you using virtualization for your ZCS & PMG servers and/or are you behind a NAT router?

[zawadix]

Yes, there is a DNS answer.
I’am using proxmox virtualization for ZCS & PMG, behnind NAT.