I AM USING CENTOS 7 CWP PANEL AND I CANNOT RECEIVE EMAIL SENDINGS BECAUSE 25 PORTS ARE DISABLED IN MY COUNTRY, WE ARE LOOKING FOR AN EXPERT TO MAKE THE NECESSARY SETTINGS.
Ohhh, my eyes!... You have to looking for somebody who will say to you the CapsLock is evil.
And if you have blocked SMTP port you have to change the provider.