Setting up mail

Postfix via external mail

https://devops.ionos.com/tutorials/configure-a-postfix-relay-through-gmail-on-centos-7/

yum -y install postfix cyrus-sasl-plain mailx

systemctl restart postfix

systemctl enable postfix

vi /etc/postfix/main.cf

myhostname = ianculovici.com

relayhost = [smtp.gmail.com]:587
smtp_use_tls = yes
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_tls_CAfile = /etc/ssl/certs/ca-bundle.crt
smtp_sasl_security_options = noanonymous
smtp_sasl_tls_security_options = noanonymous

vi /etc/postfix/sasl_passwd

[smtp.gmail.com]:587 username:password

postmap /etc/postfix/sasl_passwd

chown root:postfix /etc/postfix/sasl_passwd*
chmod 640 /etc/postfix/sasl_passwd*

The mutt Command

mutt

Change mailbox: