soydepr
Posts: 154
Joined: Mon Mar 24, 2014 10:51 am

DNS error

Mon Feb 18, 2019 8:38 pm

When sending email from the outside email coming back with dns error how I I. This
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epoch1970
Posts: 3333
Joined: Thu May 05, 2016 9:33 am
Location: Paris, France

Re: DNS error

Mon Feb 18, 2019 8:51 pm

Well, that says mail.torombolo.ml is nonexistent...

Code: Select all

$ dig  MX torombolo.ml

; <<>> DiG 9.11.5 <<>> MX torombolo.ml
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62990
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1460
; COOKIE: 743ce9ee1246dff8842625ba5c6b19924d12428425555dd0 (good)
;; QUESTION SECTION:
;torombolo.ml.			IN	MX

;; ANSWER SECTION:
torombolo.ml.		3600	IN	MX	0 mail.torombolo.ml.

;; Query time: 12 msec
;; SERVER: 172.17.0.2#53(172.17.0.2)
;; WHEN: Mon Feb 18 20:46:10 UTC 2019
;; MSG SIZE  rcvd: 90

$ dig  mail.torombolo.ml

; <<>> DiG 9.11.5 <<>> mail.torombolo.ml
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 59032
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1460
; COOKIE: aaf141db69d479f6faa180525c6b199cd98dcd831f538998 (good)
;; QUESTION SECTION:
;mail.torombolo.ml.		IN	A   <= SOMETHING IS AMISS HERE...

;; AUTHORITY SECTION:
torombolo.ml.		300	IN	SOA	ns01.freenom.com. soa.freenom.com. 1550495653 10800 3600 604800 3600

;; Query time: 12 msec
;; SERVER: 172.17.0.2#53(172.17.0.2)
;; WHEN: Mon Feb 18 20:46:20 UTC 2019
;; MSG SIZE  rcvd: 130
Check the configuration of ns01.freenom.com. Lookup the FAQ of your registrar.
"S'il n'y a pas de solution, c'est qu'il n'y a pas de problème." Les Shadoks, J. Rouxel

Andyroo
Posts: 3770
Joined: Sat Jun 16, 2018 12:49 am
Location: Lincs U.K.

Re: DNS error

Mon Feb 18, 2019 9:10 pm

It’s possibly a black list error - the domain has two strikes against it using mxtoolbox.com Plenty of others list it fine though
Need Pi spray - these things are breeding in my house...

epoch1970
Posts: 3333
Joined: Thu May 05, 2016 9:33 am
Location: Paris, France

Re: DNS error

Mon Feb 18, 2019 9:14 pm

It's a DNS problem. Not an SMTP problem.
Which will come next, anyway...
"S'il n'y a pas de solution, c'est qu'il n'y a pas de problème." Les Shadoks, J. Rouxel

Andyroo
Posts: 3770
Joined: Sat Jun 16, 2018 12:49 am
Location: Lincs U.K.

Re: DNS error

Mon Feb 18, 2019 9:33 pm

epoch1970 wrote:
Mon Feb 18, 2019 9:14 pm
It's a DNS problem. Not an SMTP problem.
Which will come next, anyway...
True but I’ve known mail filters report domain errors for blacklisted one before now - Symantic, I’m looking at you :roll:

Looking at the domain though the mail is a bit of a mess https://mxtoolbox.com/domain/torombolo.ml/ - wonder if this is the OPs own domain?

I don’t think it’s a Pi problem though :lol:
Need Pi spray - these things are breeding in my house...

soydepr
Posts: 154
Joined: Mon Mar 24, 2014 10:51 am

Re: DNS error

Mon Feb 18, 2019 9:51 pm

How I fix the mess. Will making my hostname e Mail be enough

epoch1970
Posts: 3333
Joined: Thu May 05, 2016 9:33 am
Location: Paris, France

Re: DNS error

Mon Feb 18, 2019 10:23 pm

soydepr wrote:
Mon Feb 18, 2019 9:51 pm
How I fix the mess. Will making my hostname e Mail be enough
Look at the (short) documentation freenom provides.
In addition:
- A mail server must have an A record, not a CNAME
- For the last 15 years at least, self hosting a public mail server has proven to be the wrong choice.
Once your DNS records are correct you'll find your mail traffic rejected and/or your domain blacklisted in a jiffy because of spam fighting.
Consider using a hosted SMTP service from a reputable provider.

(Does this conversation have anything to do with Pi, anyway? Because a Pi isn't the perfect mail server platform either...)
"S'il n'y a pas de solution, c'est qu'il n'y a pas de problème." Les Shadoks, J. Rouxel

soydepr
Posts: 154
Joined: Mon Mar 24, 2014 10:51 am

Re: DNS error

Mon Feb 18, 2019 11:43 pm

Andyroo wrote:
Mon Feb 18, 2019 9:33 pm
epoch1970 wrote:
Mon Feb 18, 2019 9:14 pm
It's a DNS problem. Not an SMTP problem.
Which will come next, anyway...
True but I’ve known mail filters report domain errors for blacklisted one before now - Symantic, I’m looking at you :roll:

Looking at the domain though the mail is a bit of a mess https://mxtoolbox.com/domain/torombolo.ml/ - wonder if this is the OPs own domain?

I don’t think it’s a Pi problem though :lol:
Should I stop postfix before I get blacklisted. What gets blacklisted the domain or ip

Here is my mx record what am I missing
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soydepr
Posts: 154
Joined: Mon Mar 24, 2014 10:51 am

Re: DNS error

Tue Feb 19, 2019 12:54 am

Seems I fix my dns was able to receive an email from the outside

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rpdom
Posts: 14708
Joined: Sun May 06, 2012 5:17 am
Location: Chelmsford, Essex, UK

Re: DNS error

Tue Feb 19, 2019 6:42 am

Andyroo wrote:
Mon Feb 18, 2019 9:33 pm
Looking at the domain though the mail is a bit of a mess https://mxtoolbox.com/domain/torombolo.ml/ - wonder if this is the OPs own domain?
Interesting test. I run my own mail server (not on a Pi, well actually I do have one on a Pi, but it's internal only). It comes up with two minor warnings on that site. I suppose I should look at that, but generally it works fine (apart from stupid government sites that don't believe a domain ending in .space is valid for email addresses).

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