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Documentation Index

Fetch the complete documentation index at: https://jetemail.com/docs/llms.txt

Use this file to discover all available pages before exploring further.

We recommend using our DirectAdmin plugin for best results
This guide will walk you through the process of setting up JetEmail as a smarthost in DirectAdmin. By integrating JetEmail’s advanced features, you’ll enhance your email performance, improve deliverability, and benefit from robust security and streamlined email management.

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Setting up DirectAdmin

1

Edit Exim Configuration

Edit the /etc/exim.authenticators.post.conf file to include the following configuration:
jetemail_login:
  driver = plaintext
  public_name = LOGIN
  client_send = : Your JetEmail SMTP username : Your JetEmail SMTP password
Replace Your JetEmail SMTP username and Your JetEmail SMTP password with your actual JetEmail credentials.
2

Edit Exim Transports Configuration

Edit the /etc/exim.transports.pre.conf file to include the following configuration:
driver = smtp
port = 25
hosts_require_auth = <; $host_address
hosts_require_tls = $host_address
headers_add = "${if def:authenticated_id{X-AuthUser: ${authenticated_id}}}"
interface = <; ${if exists{/etc/virtual/domainips}{${lookup{$sender_address_domain}lsearch*{/etc/virtual/domainips}}}}
helo_data = ${if exists{/etc/virtual/helo_data}{${lookup{$sending_ip_address}iplsearch{/etc/virtual/helo_data}{$value}{$primary_hostname}}}{$primary_hostname}}
hosts_try_chunking =
hosts_try_fastopen =
.include_if_exists /etc/exim.dkim.conf

auth_relay_forward:
driver = smtp
port = 25
hosts_require_auth = <; $host_address
hosts_require_tls = $host_address
headers_add = "${if def:authenticated_id{X-AuthUser: ${authenticated_id}}}"
interface = <; ${if exists{/etc/virtual/domainips}{${lookup{$sender_address_domain}lsearch*{/etc/virtual/domainips}}}}
helo_data = ${if exists{/etc/virtual/helo_data}{${lookup{$sending_ip_address}iplsearch{/etc/virtual/helo_data}{$value}{$primary_hostname}}}{$primary_hostname}}
hosts_try_chunking =
hosts_try_fastopen =
max_rcpt = 1
return_path = ${srs_encode {SRS_SECRET} {$return_path} {$original_domain}}
.include_if_exists /etc/exim.dkim.conf
3

Edit Exim Routers Configuration

Edit the /etc/exim.routers.pre.conf file to include the following configuration:
driver = manualroute
domains = ! +local_domains
ignore_target_hosts = 127.0.0.0/8
condition = ${if !eq{$original_domain}{$domain}}
condition = ${if !eq{$original_domain}{}}
condition = "${perl{check_limits}}"

transport = auth_relay_forward

route_list = * relay.jetsmtp.net
no_more

smart_route:
driver = manualroute
domains = ! +local_domains
ignore_target_hosts = 127.0.0.0/8
condition = "${perl{check_limits}}"

transport = auth_relay

route_list = * relay.jetsmtp.net
no_more
4

Restart Services

After saving, you may need to restart the email services. Go to:Server Manager -> Service MonitorFind and restart the following services:
  • Exim
  • Dovecot
5

Test Configuration

Send a test email to ensure the new configuration is working correctly.

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Additional Configuration (Optional)

For improved deliverability and authentication, consider setting up SPF, DKIM, and DMARC records for your domains.

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Troubleshooting

If you encounter any issues:
  1. Double-check your SMTP credentials
  2. Verify that port 587 is open in your firewall
  3. Check the Exim logs for any error messages
  4. Ensure your account is active and in good standing
For further assistance, contact support.