==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.0
- Linux/BSD distribution name and version: CentOS7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? Yes
- Related log if you're reporting an issue:
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Apparently, some of my clients emails are getting kicked back with a message about an SPF Record. After a bit of research, I see that it can be created through the DNS records. Can you give me a suggestion for how I can accomplish this?