Test for a SMTP server :
While trobleshooting any email issues, This will help you to check your mail server with SMTP. To check this for your mail server, you can use telnet command to port 25 as:
# telnet 220.127.116.11 25
MAIL FROM: [email protected]
RCPT TO: [email protected]
This is a test mail .Checking !!!!!
18.104.22.168 is mail server ip.
You can use your hostname instead of Ip if the system you are on has the correct Domain Name Service (DNS) settings and can resolve the hostname of the mail server.
For more information about our managed web hosting services, visit our homepage.