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[GH-ISSUE #1542] DNSBL Issue with bogons #1214

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opened 2026-02-27 11:15:54 +03:00 by kerem · 6 comments

kerem commented

2026-02-27 11:15:54 +03:00

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Originally created by @makakken on GitHub (Jul 23, 2018).
Original GitHub issue: https://github.com/modoboa/modoboa/issues/1542

Impacted versions

Modoboa: 1.10.6
installer used: Yes
Webserver: Nginx

Steps to reproduce

Install, activate Domain - MX checks, create Domain.

Current behavior

You get informed you are blacklisted on bogons.cymru.com

Expected behavior

No Blacklist Entrys because it's a fresh domain and server ip.

Video/Screenshot link (optional)

Modoboa detected that domain -------.de is listed by the following DNSBL providers:
bogons.cymru.com: mail.-------.de (127.0.1.1) for -------.de

Originally created by @makakken on GitHub (Jul 23, 2018). Original GitHub issue: https://github.com/modoboa/modoboa/issues/1542 # Impacted versions * Modoboa: 1.10.6 * installer used: Yes * Webserver: Nginx # Steps to reproduce Install, activate Domain - MX checks, create Domain. # Current behavior You get informed you are blacklisted on bogons.cymru.com # Expected behavior No Blacklist Entrys because it's a fresh domain and server ip. # Video/Screenshot link (optional) Modoboa detected that domain -------.de is listed by the following DNSBL providers: bogons.cymru.com: mail.-------.de (127.0.1.1) for -------.de

kerem

2026-02-27 11:15:54 +03:00

closed this issue
added the
feedback-needed
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kerem commented

2026-02-27 11:15:55 +03:00

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@makakken commented on GitHub (Jul 23, 2018):

Is anyone experiencing the same Problem? When i look up the mentioned domain for a blacklist check on mxtoolbox.com i get:

--	Blacklist	Reason	TTL	ResponseTime
OK	CYMRU BOGONS			16

So it seems to me there is something wrong?

@makakken commented on GitHub (Jul 23, 2018): Is anyone experiencing the same Problem? When i look up the mentioned domain for a blacklist check on mxtoolbox.com i get: -- | Blacklist | Reason | TTL | ResponseTime -- | -- | -- | -- | -- OK | CYMRU BOGONS | | | 16 So it seems to me there is something wrong?

kerem commented

2026-02-27 11:15:55 +03:00

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@kryskool commented on GitHub (Aug 6, 2018):

Hi @makakken

Can you check your MX with dig command on the server itself .

Regards,

@kryskool commented on GitHub (Aug 6, 2018): Hi @makakken Can you check your MX with dig command on the server itself . Regards,

kerem commented

2026-02-27 11:15:55 +03:00

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@makakken commented on GitHub (Aug 7, 2018):

dig test.tld MX

; <<>> DiG 9.10.3-P4-Debian <<>> test.tld MX
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 65266
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 2

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;test.tld. IN MX

;; ANSWER SECTION:
test.tld. 86400 IN MX 10 mail.test.tld.

;; ADDITIONAL SECTION:
mail.test.tld. 3522 IN A 159.69.7.XXX

;; Query time: 5 msec
;; SERVER: 213.133.100.100#53(213.133.100.100)
;; WHEN: Tue Aug 07 16:49:42 CEST 2018
;; MSG SIZE rcvd: 77

@kryskool anonymized domain and ip. but it shows the correct values.

@makakken commented on GitHub (Aug 7, 2018): dig test.tld MX ; <<>> DiG 9.10.3-P4-Debian <<>> test.tld MX ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 65266 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 2 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;test.tld. IN MX ;; ANSWER SECTION: test.tld. 86400 IN MX 10 mail.test.tld. ;; ADDITIONAL SECTION: mail.test.tld. 3522 IN A 159.69.7.XXX ;; Query time: 5 msec ;; SERVER: 213.133.100.100#53(213.133.100.100) ;; WHEN: Tue Aug 07 16:49:42 CEST 2018 ;; MSG SIZE rcvd: 77 @kryskool anonymized domain and ip. but it shows the correct values.

kerem commented

2026-02-27 11:15:55 +03:00

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@tonioo commented on GitHub (Sep 16, 2018):

@makakken Have you checked this issue: https://github.com/modoboa/modoboa/issues/921?

@tonioo commented on GitHub (Sep 16, 2018): @makakken Have you checked this issue: https://github.com/modoboa/modoboa/issues/921?

kerem commented

2026-02-27 11:15:55 +03:00

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@IPv777 commented on GitHub (Sep 24, 2018):

I had the same issue, as a workaround, I just replaced
127.0.1.1{tab}[FQDN}
by
{public IP of mail server}{tab}[FQDN}
in the /etc/hosts file

and waited 2 hours (?) the refreshing of DNS entries in modoboa.

Now it's ok

@IPv777 commented on GitHub (Sep 24, 2018): ![image](https://user-images.githubusercontent.com/19636346/45950063-7c21fa00-bffe-11e8-958f-f231fb6248e8.png) I had the same issue, as a workaround, I just replaced `127.0.1.1{tab}[FQDN} ` by `{public IP of mail server}{tab}[FQDN}` in the `/etc/hosts` file and waited 2 hours (?) the refreshing of DNS entries in modoboa. Now it's ok ![image](https://user-images.githubusercontent.com/19636346/45960699-12651880-c01d-11e8-9384-e45c6132a8c4.png)

kerem commented

2026-02-27 11:15:55 +03:00

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@makakken commented on GitHub (Sep 24, 2018):

@IPv777 looks like this helps. thanks. steps from #921 didn't work for me.

@makakken commented on GitHub (Sep 24, 2018): @IPv777 looks like this helps. thanks. steps from #921 didn't work for me.