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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 for 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.
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.
This feature is for advanced users. Exercise extreme caution when you use this feature.
Click the Advanced Editor tab to modify Exim's default configuration. For information about how to configure these directives, read Exim's configuration syntax documentation.
For most changes that you make to your Exim configuration, the system changes both the
/etc/exim.conf.localfile is Exim's override file and stores Exim's default configuration.
Note title Note:
/etc/exim.conf.localfile does not exist by default. The system creates the
/etc/exim.conf.localfile 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_blockentry, the system stores the setting in the
To skip RBLs for specific domains, log in as the
root user and use your preferred text editor to create and edit the
Add the domains to the file, with one domain name per line.
- After you create the
/etc/skiprbldomainsfile, enable the
cPanel & WHM uses the following directives in its Mail SNI integration:
If you manually change any of these directives, you may break Mail SNI integration in cPanel & WHM.
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:
- 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.
- Click Run Backup.
You cannot delete these backups.
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:
- Click Choose File to select the backup file. Backup files use the
.tar.gzfile format by default.
- 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.
Click the Reset tab to restore Exim's default configuration. Select the type of reset that you wish to perform from the Reset type menu, and click Reset.
Read the description of your chosen reset type carefully. The description appears below the Reset type menu.