.cf

File Type Generic IconSendmail Configuration File
File Format Standard
Usage Open manually; may be referenced by an application
Rank ★ ☆ ☆  Uncommon
Description

The sendmail.cf file is a settings file used to sendmail, a Unix program used for sending email. It is saved in a plain text format and includes hundreds of configuration settings.

Examples of settings defined in the sendmail.cf file include the operating system being used, the type of mailer program used to send messages, mail relay hostnames, SMTP settings, and anti-spam preferences.

Open With
Windows

IconAny text editor

macOS

IconAny text editor

Unix

IconSendmail

IconAny text editor

Updated October 19, 2011
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