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Overview:

Use the features in the Exim Configuration Manager interface to modify your Exim configuration. Exim is a mail transfer agent that cPanel & WHM includes. Mail transfer agents send and receive email messages to your server.

Many of the Exim Configuration Manager options involve Simple Mail Transfer Protocol (SMTP). Servers use SMTP as the standard protocol to send and receive email messages.

Basic Editor

Click the Basic Editor tab to modify the options in your Exim configuration. For detailed information about each option in the Basic Editor tab, read our Exim Configuration Manager - Basic Editor documentation.

Advanced Editor

Click the Advanced Editor tab to modify Exim’s default configuration. For information about how to configure these directives, read Exim’s documentation.

For most changes that you make to your Exim configuration, the system changes both the /etc/exim.conf.localopts and /etc/exim.conf.local files. The system uses the information in these files when it rebuilds the /etc/exim.conf file.

• The /etc/exim.conf.local file is Exim’s override file and stores Exim’s default configuration.

  Note:

  The /etc/exim.conf.local file does not exist by default. The system creates the /etc/exim.conf.local file after you configure Exim’s settings to use non-default values.

   

• For custom ACL changes to the Exim configuration, the system creates a file in a subdirectory under the /usr/local/cpanel/etc/exim/acls/ directory. For example, if you create a custom acl_smtp_helo_block entry, the system stores the setting in the /usr/local/cpanel/etc/exim/acls/ACL_SMTP_HELO_BLOCK/custom_begin_smtp_helo file.

You can skip RBLs for specific, local domains. To do this, log in to your server as the root user and use a text editor to create and edit the /etc/skiprbldomains file.

• Add the local domains to the file, with one domain name per line.

• After you create the /etc/skiprbldomains file, enable the skip_rbl_domains directive.

To set up smarthost authentication for a specific domain, enter the following lines in the AUTH section:

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remoteserver_login:
  driver = plaintext
  public_name = user
  hide client_send = : [email protected] : 12345luggage

Backup

Click the Backup tab to create a backup of your Exim configuration, which you can either download to your computer or save on the server.

To create a backup, perform the following steps:

1. Select one of the following options:

   • Download — Save the backup to a local drive on your computer.
   • Save on Server — Save the backup to the server.

2. Click Run Backup.

Restore

Click the Restore tab to restore an existing backup of an Exim configuration. To restore an Exim configuration backup that you saved to a local drive, perform the following steps:

1. Click Choose File to select the backup file. Backup files use the .tar.gz file format by default.

2. Click Upload to upload and restore the selected backup file.

To restore an Exim configuration backup that you saved to the server, click Restore for the file name of the backup that you wish to restore.

Reset

Click the Reset tab to restore Exim’s default configuration.

1. Select the type of reset to perform from the Reset type menu. The following types of reset are available:

   • Reset cPanel & WHM Exim configuration files, one option at a time, until the installed Exim configuration is valid.
   • Update the installed Exim configuration to the minimum version required by this version of cPanel & WHM.
   • Reset the entire Exim configuration to the default settings provided with cPanel & WHM.
   • Reset any manually customized data in the ACLs section.
   • Reset all Advanced Editor options, except third-party and custom ACLs.
   • Disable all third-party and custom ACLs.

2. Read the description of your chosen reset type carefully. The description appears below the Reset type menu.

3. If you wish to disable third-party and custom ACLs, select the Disable third-party and custom ACLs checkbox.

   Note:

   The Reset cPanel & WHM Exim configuration files, one option at a time, until the installed Exim configuration is valid. and Update the installed Exim configuration to the minimum version required by this version of cPanel & WHM. do not include this option.

    

4. Click Reset.