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What is the .CF File Extension?


.CF File Extension Description:

The CF file extension is used in the UNIX SendMail program for its configuration files. This transfer agent, routes mail based on rules set and established by a system administrator. SendMail first appeared in BSD 4.2 to accept and deliver email to local mailboxes. Files in the .cf file extension configure SendMail so that it may be able to transport electronic letters in electronic envelopes. If the recipient is in the same Local Area Network, and SendMail is running locally, it will be sent within the network. If the recipient is distant, it will be forwarded first to the local SendMail then to the SendMail that is running remotely for delivery.

SendMail is similar to a post office, but instead, it takes only seconds to deliver mail, address changes take effect immediately, and mail can be forwarded anywhere in the world. In addition, host addresses are located dynamically; this means that machines can be renamed and moved, while the delivery of the email will still be a success.

SendMail has the simple responsibility of transporting mail from a client on one machine to another user on the same machine. Vendors supply a SendMail configuration file with the .cf file extension that will accomplish this. As your needs increase for sending mail, SendMail configuration files become more complex as hosts which are connected to the Internet should use a DNS or Domain name System in the translation of host names to network addresses. The SendMail Program requires sending email among various machines; consequently, files with a .cf file extension are designed to be flexible to accomplish this. This concept enables a binary to be distributed into several machines where files with the .cf file extension can be customized to suit specific needs.

In the event that mail requires to be delivered to a specific user, the SendMail program decides on the most appropriate form of delivery based on a configuration file with a .cf file extension. The foundation of SendMail is in the configuration file, because it defines location, and the behavior of the other parts of the program. Files with a .cf file extension contain all valuable information that SendMail needs to do its job. Within it are saved information you have provided such as locations, modes of operations and permissions. In addition to this, rewritten rules, and rules sets are also contained within a file with a CF file extension. It transforms mail addresses into an alternate form that may be necessary for its delivery.

Author: UNIX Systems
Author URL: http://www.unix.com
Related Applications: SendMail Program
Common Path: N/A

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Do you have errors with .CF files?

What Causes .CF files Errors to Occur?

A common and likely cause for .CF files errors is damage in the Windows program registry - fixing is necessary to protect against more damage in other applications and/or hardware devices. During the time the errors continue your personal computer stays in danger of possible blue screen errors, hardware failure and fatal crashes.

Symptoms of .CF files Errors:

.CF files error symptoms include program lock ups, start up or shut down troubles, jerky computer performance, laggy behaviour, screen freeze, internal speaker beeps, problems opening program files and issues while installing applications.

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What is the .CF File Extension?    |    Scan for .CF File Extension Errors    |    How to Fix .CF File Extension Errors