Knowledgebase: outmail
How do I setup outmail (outbound SMTP) on Exim for WHM?

Problem:

How to setup outmail (outbound SMTP) for the Exim mailserver in WHM or cPanel?

Solution:

Follow the guide below to configure Exim to use Outmail as an outbound smarthost.

1. Login to your cPanel & WHM Admin Panel as an Administrator.  

2. Go to Home -> Service Configuration

3. Click on the 'Exim Configuration Manager' button

4. Click the 'Advanced Editor' tab

5. In the section marked 'Section: AUTH' add the following lines:-

outmail_login:
driver = plaintext
public_name = LOGIN
client_send = : OUTMAILUSERNAME : OUTMAILPASSWORD

Where OUTMAILUSERNAME and OUTMAILPASSWORD are your outmail credentials provided on sign-up.

6. In the section marked 'Section: ROUTERSTART' add the following lines:-

send_thru_outmail:
driver = manualroute
domains = ! +local_domains
transport = outmail_smtp

route_list = * mxXXXXXX.smtp-engine.com

Where mxXXXXXXX.smtp-engine.com is the server provided on sign-up.

7. In the section marked 'Section: TRANSPORTSTART' add the following lines:-

outmail_smtp:
driver = smtp
port = 2525
hosts = mxXXXXXX.smtp-engine.com

hosts_require_auth = mxXXXXXX.smtp-engine.com

Where mxXXXXXXX.smtp-engine.com is the server provided on sign-up. You can use either 2525, 25, 8025 or 587 as the port.

8. Click the SAVE button, and exim should restart.

Once it has restarted the outbound emails should all be sent through outmail.

Summary of details

Outgoing server

mxXXXXXX.smtp-engine.com

As provided to you on your signup email.

Outgoing server protocol

SMTP

Outgoing server port

25, 587, 2525 or 8025

Username

As provided

Password

As provided

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The Origin of this information may be internal or external to Prolateral Consulting Ltd. Prolateral makes all reasonable efforts to verify this information. However, the information provided in this document is for your information only. Prolateral makes no explicit or implied claims to the validity of this information. Any trademarks referenced in this document are the property of their respective owners.