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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 documentation.
For most changes that you make to your Exim configuration, the system changes both the
/etc/exim.conf.local file is Exim's override file and stores Exim's default configuration.
/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.
/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.
To set up smarthost authentication for a specific domain, enter the following lines in the
remoteserver_login: driver = plaintext public_name = user hide client_send = : email@example.com : 12345luggage
These lines use the following examples:
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:
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:
.tar.gzfile format by default.
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 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.