Can't send emails through terminal with exim4 command

Hello! I’m trying to send an email to my gmail account using this command:

exim -v [email protected]
From: info@mydomain Subject: Hellooo
Hellohello

But the result is always the same:

Authentication results:
DKIM = did not pass
SPF [hestiacp.mydomain.com] with ip: [my.ip.address] = did not pass

I created the domain mydomain•com as a DNS in my user account (not admin), and it has it’s SPF, DMARC, DKIM records set up nicely.

The only strange thing I’ve noticed is that i can’t create a new DNS for the subdomain hestiacp•mydomain•com (the one that i use for entering the Hestia Control Panel), because this error pops out: “Error: Web domain hestiacp•mydomain•com exists”.

The web hestiacp•mydomain•com is created under the admin user, and from there, i can’t see any DNS created for that subdomain… and when I try to create it there, I also can’t because it says that hestiacp•mydomain•com and mydomain•com already belong to my user account.

Well I just solved this!
The only thing I had to do was to change the hostname from hestiacp.mydomain.com to mydomain.com!