1 Topic by fratm

  • fratm
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  • Registered: 2022-10-18
  • Posts: 13

Topic: DKIM and other anti-spam stuff for second domain

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):  1.6.2
- Deployed with iRedMail Easy or the downloadable installer? Downloadable
- Linux/BSD distribution name and version: Debian 11
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): nginx
- Manage mail accounts with iRedAdmin-Pro? no?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hi,

New to IRedMail, love it so far.   Using roundcube.

My question is this, as I add domains, do they use the same DKIM as the original domain? What about other antispam stuff? spf? dmarc? etc..

Sorry, been a while since I administered a mail server and things have change a lot. So I am a little bit rusty at what needs to be done.

Thanks for any replies, and kudos to the iRedMail team, if this wasn't just a hobby, I would for sure buy the pro stuff.. But this is just a hobby server with a couple hobby domains.

Cheers,
Fratm

----

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

2 Reply by Cthulhu

  • Cthulhu
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  • Registered: 2019-06-04
  • Posts: 907

Re: DKIM and other anti-spam stuff for second domain

Depends on your configuration

SPF/DMARC is individual for each domain, but you can shortcut it:

v=spf1 redirect=domain1.tld

for DKIM:

https://docs.iredmail.org/sign.dkim.sig … omain.html

It is safe to use one DKIM for all mail domains, you don't need to add a new dkim txt record for a new domain in this case