To configure cPanel emails to relay via Sendinblue, ensure that you are the root user of the server.
Login to your cPanel & WHM Admin Panel as Administrator. Go to Home >> Service Configuration >> Exim Configuration Manager.
Click on Advanced Editor.
Enter the following in the AUTH Box (replace username and apikey with the actual values. Learn more here.):
sendinblue_login: driver = plaintext public_name = LOGIN client_send = : username : apikey
Add a route in the ROUTERSTART Configuration Box
send_via_sendinblue: driver = manualroute domains = ! +local_domains transport = sendinblue_smtp route_list = "* smtp-relay.sendinblue.com::587 byname" host_find_failed = defer no_more
Add a transport to the TRANSPORTSTART Configuration Box:
sendinblue_smtp: driver = smtp hosts = smtp-relay.sendinblue.com hosts_require_auth = smtp-relay.sendinblue.com
Once you have completed, save all changes. Exim will restart automatically and the changes will take effect.
To confirm that the setup is correct, follow the following steps:
- Send an email from webmail (remember its subject).
- Login to Sendinblue and proceed to the Transactional tab.
- Click on the logs tab. You should see the email that you sent in step 1.