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[GH-ISSUE #1833] I cant receive external emails, but send to them. #1439

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opened 2026-02-27 11:17:07 +03:00 by kerem · 10 comments
kerem commented 2026-02-27 11:17:07 +03:00
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Originally created by @onpointbtw on GitHub (Feb 2, 2020).
Original GitHub issue: https://github.com/modoboa/modoboa/issues/1833

Impacted versions

  • Modoboa: 1.14.0
  • installer used: Yes
  • Webserver: Nginx

Steps to reproduce

I really dont know. Everything was working fine, but then suddenly it didnt.

Current behavior

I am not able to receive external Mails. I can receive internal mails (sent from the modoboa website of my server, not working when using an app on my mobile) and send to external adresses (again, just from the website)

Expected behavior

I can send and receive everything from both, mobile and website

Video/Screenshot link (optional)

LISTENING Ports on my VPS
Screenshot_1

Webmail Settings in Modoboa (German)
Screenshot_2

Originally created by @onpointbtw on GitHub (Feb 2, 2020). Original GitHub issue: https://github.com/modoboa/modoboa/issues/1833 # Impacted versions * Modoboa: 1.14.0 * installer used: Yes * Webserver: Nginx # Steps to reproduce I really dont know. Everything was working fine, but then suddenly it didnt. # Current behavior I am not able to receive external Mails. I can receive internal mails (sent from the modoboa website of my server, not working when using an app on my mobile) and send to external adresses (again, just from the website) # Expected behavior I can send and receive everything from both, mobile and website # Video/Screenshot link (optional) LISTENING Ports on my VPS ![Screenshot_1](https://user-images.githubusercontent.com/51333265/73614747-2bfb7480-4602-11ea-94ce-35233494f0e2.png) Webmail Settings in Modoboa (German) ![Screenshot_2](https://user-images.githubusercontent.com/51333265/73614754-3f0e4480-4602-11ea-8e94-4075a4e3794f.png)
kerem closed this issue 2026-02-27 11:17:07 +03:00
kerem commented 2026-02-27 11:17:08 +03:00
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@onpointbtw commented on GitHub (Feb 2, 2020):

Ok, I now got dovecot running too, but still not receiving emails...

Screenshot_3

Also, whenever I try to send an email to my mail server, it doesnt even show up in mail.log (/var/log/mail.log)

<!-- gh-comment-id:581186370 --> @onpointbtw commented on GitHub (Feb 2, 2020): Ok, I now got dovecot running too, but still not receiving emails... ![Screenshot_3](https://user-images.githubusercontent.com/51333265/73616663-7edf2700-4616-11ea-8978-6dc25a2dabcd.png) Also, whenever I try to send an email to my mail server, it doesnt even show up in mail.log (/var/log/mail.log)
kerem commented 2026-02-27 11:17:08 +03:00
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@tonioo commented on GitHub (Feb 4, 2020):

@Bastianvgt If you don't see anything in your logs, it means the problem is not on the server. Have you checked your firewall / DNS configuration / ISP blocking rules / etc ?

<!-- gh-comment-id:581784052 --> @tonioo commented on GitHub (Feb 4, 2020): @Bastianvgt If you don't see anything in your logs, it means the problem is not on the server. Have you checked your firewall / DNS configuration / ISP blocking rules / etc ?
kerem commented 2026-02-27 11:17:08 +03:00
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@onpointbtw commented on GitHub (Feb 4, 2020):

Yes, I did. Anyways, I tried to reinstall but it didnt work. And I cant install it again, so I will reinstall my VPS sometime... Thank you for your reply and this Thread can be closed.

Dienstag, 4. Februar 2020, 08:50 +0100 von notifications@github.com notifications@github.com:

@Bastianvgt If you don't see anything in your logs, it means the problem is not on the server. Have you checked your firewall / DNS configuration / ISP blocking rules / etc ?
—
You are receiving this because you were mentioned.
Reply to this email directly, view it on GitHub , or unsubscribe .

<!-- gh-comment-id:581899339 --> @onpointbtw commented on GitHub (Feb 4, 2020): Yes, I did. Anyways, I tried to reinstall but it didnt work. And I cant install it again, so I will reinstall my VPS sometime... Thank you for your reply and this Thread can be closed. Dienstag, 4. Februar 2020, 08:50 +0100 von notifications@github.com <notifications@github.com>: >@Bastianvgt If you don't see anything in your logs, it means the problem is not on the server. Have you checked your firewall / DNS configuration / ISP blocking rules / etc ? >— >You are receiving this because you were mentioned. >Reply to this email directly, view it on GitHub , or unsubscribe .
kerem commented 2026-02-27 11:17:08 +03:00
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@onpointbtw commented on GitHub (Feb 4, 2020):

Hey! I just reinstalled my VPS and modoboa.

I now tested with GMail and this error occures:

Recipient address rejected: undeliverable address: mail for bot-dev.de loops back to myself

AND now I get errors on my VPS.

Feb 4 17:57:38 vmd43772 postfix/smtpd[3020]: connect from mail-io1-f41.google.com[209.85.166.41] Feb 4 17:57:38 vmd43772 postfix/smtpd[3020]: warning: connect to Milter service inet:127.0.0.1:12345: Connection refused Feb 4 17:57:39 vmd43772 postfix/smtpd[3020]: Anonymous TLS connection established from mail-io1-f41.google.com[209.85.166.41]: TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) Feb 4 17:57:39 vmd43772 postfix/smtpd[3020]: NOQUEUE: reject: RCPT from mail-io1-f41.google.com[209.85.166.41]: 550 5.1.1 <basti@bot-dev.de>: Recipient address rejected: undeliverable address: mail for bot-dev.de loops back to myself; from=<myemail@gmail.com> to=<basti@bot-dev.de> proto=ESMTP helo=<mail-io1-f41.google.com> Feb 4 17:57:39 vmd43772 postfix/smtpd[3020]: disconnect from mail-io1-f41.google.com[209.85.166.41] ehlo=2 starttls=1 mail=1 rcpt=0/1 data=0/1 quit=1 commands=5/7

I hope thats not too less information

<!-- gh-comment-id:582010865 --> @onpointbtw commented on GitHub (Feb 4, 2020): Hey! I just reinstalled my VPS and modoboa. I now tested with GMail and this error occures: Recipient address rejected: undeliverable address: mail for bot-dev.de loops back to myself AND now I get errors on my VPS. `Feb 4 17:57:38 vmd43772 postfix/smtpd[3020]: connect from mail-io1-f41.google.com[209.85.166.41] Feb 4 17:57:38 vmd43772 postfix/smtpd[3020]: warning: connect to Milter service inet:127.0.0.1:12345: Connection refused Feb 4 17:57:39 vmd43772 postfix/smtpd[3020]: Anonymous TLS connection established from mail-io1-f41.google.com[209.85.166.41]: TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) Feb 4 17:57:39 vmd43772 postfix/smtpd[3020]: NOQUEUE: reject: RCPT from mail-io1-f41.google.com[209.85.166.41]: 550 5.1.1 <basti@bot-dev.de>: Recipient address rejected: undeliverable address: mail for bot-dev.de loops back to myself; from=<myemail@gmail.com> to=<basti@bot-dev.de> proto=ESMTP helo=<mail-io1-f41.google.com> Feb 4 17:57:39 vmd43772 postfix/smtpd[3020]: disconnect from mail-io1-f41.google.com[209.85.166.41] ehlo=2 starttls=1 mail=1 rcpt=0/1 data=0/1 quit=1 commands=5/7 ` I hope thats not too less information
kerem commented 2026-02-27 11:17:08 +03:00
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@onpointbtw commented on GitHub (Feb 4, 2020):

@tonioo I hope you see this cause its closed

<!-- gh-comment-id:582011765 --> @onpointbtw commented on GitHub (Feb 4, 2020): @tonioo I hope you see this cause its closed
kerem commented 2026-02-27 11:17:08 +03:00
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@tonioo commented on GitHub (Feb 4, 2020):

@Bastianvgt Can you check the value of mydestination setting in the /etc/main.cf file? It should be empty...

<!-- gh-comment-id:582015350 --> @tonioo commented on GitHub (Feb 4, 2020): @Bastianvgt Can you check the value of mydestination setting in the /etc/main.cf file? It should be empty...
kerem commented 2026-02-27 11:17:08 +03:00
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@onpointbtw commented on GitHub (Feb 4, 2020):

If you mean /etc/postfix/main.cf, it´s set to mail.bot-dev.de ( $myhostname ), I dont have a /etc/main.cf file

<!-- gh-comment-id:582017332 --> @onpointbtw commented on GitHub (Feb 4, 2020): If you mean /etc/postfix/main.cf, it´s set to mail.bot-dev.de ( $myhostname ), I dont have a /etc/main.cf file
kerem commented 2026-02-27 11:17:08 +03:00
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@onpointbtw commented on GitHub (Feb 4, 2020):

@tonioo Any idea?

<!-- gh-comment-id:582042174 --> @onpointbtw commented on GitHub (Feb 4, 2020): @tonioo Any idea?
kerem commented 2026-02-27 11:17:08 +03:00
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@onpointbtw commented on GitHub (Feb 4, 2020):

@tonioo Could you please reopen the thread?

Also: Here is my main.cf (converted to txt)

main.txt

<!-- gh-comment-id:582084903 --> @onpointbtw commented on GitHub (Feb 4, 2020): @tonioo Could you please reopen the thread? Also: Here is my main.cf (converted to txt) [main.txt](https://github.com/modoboa/modoboa/files/4155718/main.txt)
kerem commented 2026-02-27 11:17:08 +03:00
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@onpointbtw commented on GitHub (Feb 4, 2020):

Okay... new update:

I dont know what it was, but suddenly I recieved an email and it seems to be working for now...
No need to be reopened

<!-- gh-comment-id:582089016 --> @onpointbtw commented on GitHub (Feb 4, 2020): Okay... new update: I dont know what it was, but suddenly I recieved an email and it seems to be working for now... No need to be reopened
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