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Topic: How to configure iRedMail to use a specific TLS cipher ?

Hello,

I am looking for information on how to run only a specific TLS cipher i.e TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384

I guess I need to make changes in /etc/postfix/main.cf but not sure what is parameter to specify a specific cipher.

Thanks


==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.9 MYSQ edition
- Deployed with iRedMail Easy or the downloadable installer? iRedMail Easy
- Linux/BSD distribution name and version: Ubuntu 18.04 LTS
- 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.
====

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

2

Re: How to configure iRedMail to use a specific TLS cipher ?

Search "cipher" in:

- /etc/postfix/main.cf
- /etc/dovecot/dovecot.conf
- /etc/nginx/templates/ssl.tmpl