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Topic: DKIM signature in MTA

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.9
- Deployed with iRedMail Easy or the downloadable installer? The downloadable installer
- Linux/BSD distribution name and version: Debian 9
- 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.
====

Hello,

When using Roundcoube or any mailclient my emails are DKIM signature signed.

But when emails sending through MTA (e.g. the site's notifications) the DKIM signature is missing.

I use the default iRedMail settings.

DKIM record in DNS and 'amavisd-new showkeys' are correct too.

I have read this post https://forum.iredmail.org/post53218.html already.

In Google I found the settings for postfix and open-dkim only.

Is there anything else I should do to sending my emails with DKIM signature?

Thank you.

----

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

2

Re: DKIM signature in MTA

I send emails using the PHP script

3

Re: DKIM signature in MTA

Enabling SMTP authentication in your PHP script will fix this issue.