How-to configure WHM for ZeptoMail SMTP

CPanel is a popular website management tool that businesses use to take care of their hosted websites. Businesses that use cPanel and WHM for their websites can set ZeptoMail as a smart host to route their transactional emails. Follow the steps given in this article to configure ZeptoMail's SMTP for cPanel and WHM.

Configuring ZeptoMail's SMTP for email sending

To use ZeptoMail's SMTP, you can configure Exim Manager to route the outgoing emails through ZeptoMail's server.

Access Exim configuration manager:

• Log into your WHM portal as a root user and navigate to Service configuration.

• Select Exim configuration manager under this section.

• Go to the Advanced editor. Search for the AUTH section. Enter the following in the textbox:

auth_login:
 driver = plaintext
 public_name = LOGIN
 client_send = :{smtp_username}  : {smtp_pw}

• You should replace the relevant Mail Agent's SMTP credentials in client_send.
• Next, set the route configuration. You can do this in the PREROUTERS section. Go to the section and enter the following:

smart_route:
driver = manualroute
domains = ! +local_domains
ignore_target_hosts = 127.0.0.0/8
transport = auth_relay
route_list = * smtp.zeptomail.com
no_more

• Next, Scroll down to the TRANSPORTSTART section and enter the following details:

auth_relay:
driver = smtp
port = 587
hosts_require_auth = $host_address
hosts_require_tls = $host_address

• Navigate to the bottom of the page and click Save.
• This saves the configuration and restarts Exim automatically.
• Finally, send a test mail and check if the configuration is correct.