1 Topic by louis12356 (edited by louis12356 2020-12-26 03:34:17)

  • louis12356
  • Member
  • Offline
  • Registered: 2020-12-23
  • Posts: 2

Topic: *SOLVED* Undelivered Mail Returned to Sender

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.3.2
- Deployed with iRedMail Easy or the downloadable installer? downloadable
- Linux/BSD distribution name and version: Ubuntu 20.04.1
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? nope
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hey,

when i send an email to my freshly installed server, i get the following response:

Diagnostic-Code: X-Postfix; Host or domain name not found. Name service error
    for name=mail.example.org.example.org type=AAAA: Host not found

As you can see, the hostname? ist wrong (should be only mail.example.org). Is this a misconfiguration of postfix? Or do i really miss this big DNS entry?

Thanks!

----

Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.

2 Reply by craig (edited by craig 2020-12-24 11:16:29)

  • craig
  • Member
  • Offline
  • From: Canada
  • Registered: 2013-09-04
  • Posts: 272

Re: *SOLVED* Undelivered Mail Returned to Sender

What is the MX record for your domain in the DNS?

Specifically, you may have entered "mail.example.org" somewhere that was only expecting you to enter "mail". If it was only expecting you to enter "mail" and it automatically appended "example.org", then "example.org" may have been appended to "mail.example.org", making it "mail.example.org.example.org".

If that's the case the solution is to go back and edit the zone accordingly.

Also, considering the sender tried to deliver it over IPv6, make sure you're pointing your MX record to a AAAA record.

3 Reply by louis12356

  • louis12356
  • Member
  • Offline
  • Registered: 2020-12-23
  • Posts: 2

Re: *SOLVED* Undelivered Mail Returned to Sender

hey,

this was the cause - thank you.

i also added the AAAA record.

thanks!!