How to Send Email via SMTP Server from gmail Account or other mail account

Configure SSMTP on Linux/Centos

1. install ssmtp package
   #yum install ssmtp

2. Configure SSMTP  - edit vi /etc/ssmtp/ssmtp.conf
#mailhub=mail
root=abc@gmail.com
mailhub=smtp.gmail.com:587
AuthUser=abc@gmail.com
AuthPass=xxxxxx
UseSTARTTLS=YES
TLS_CA_File=/etc/pki/tls/certs/ca-bundle.crt
RewriteDomain=localhost
Hostname=localhost

save and exit.

3. Test sendmail command line
   #ssmtp xxxx@gmail.com
    type masg
    Ctrl+D       ( close and send the massage)

 4. Send mail to multiple recipients using in script
    #ssmtp abc@gmail.com, zyz@gmail.com < msg.txt