Yum install sendmail-cf

When you run this command with the -y flag, you will not be prompted to check that you are sure you want to remove the package - so be sure you absolutely want to remove sendmail-cf when using the -y flag.

This command will show you the dependencies for sendmail-cf. Thankfully, when using Yum, if dependencies are required, these are also installed at the same time so you don't have to worry too much about that. This command will check if there is an update waiting on sendmail-cf. When you run this command this will return nothing if there is nothing to update, or, will return the package name if the package is due to be updated.

Brought to you by Contrado Digital. Package Name:. Yes, add me to your new blog post notifications list. Terms of Service and other policies. Managed Solutions. SSL by brand. SSL by Type. You can setup your email client using the following settings: Incoming Server: yourdomain.

Great article! Out of many we reviewed, this was the only one that worked for us. You can check the log files for errors. Before replacing or making any changes to the sendmail. Once you are finished, restart the sendmail service and, if the m4 package is installed, the m4 macro processor will automatically generate a new sendmail. The default sendmail. One common Sendmail configuration is to have a single machine act as a mail gateway for all machines on the network.

For example, a company may want to have a machine called mail. In this situation, the Sendmail server must masquerade the machine names on the company network so that their return address is user example. After generating a new sendmail.

Stopping Spam. Email spam can be defined as unnecessary and unwanted email received by a user who never requested the communication. It is a disruptive, costly, and widespread abuse of Internet communication standards. Sendmail makes it relatively easy to block new spamming techniques being employed to send junk email.

It even blocks many of the more usual spamming methods by default. Main anti-spam features available in sendmail are header checks , relaying denial default from version 8. For example, forwarding of SMTP messages, also called relaying, has been disabled by default since Sendmail version 8. Before this change occurred, Sendmail directed the mail host x. Now, however, Sendmail must be configured to permit any domain to relay mail through the server.

However users can also be sent spam from from servers on the Internet. The following example illustrates how this file can be used to both block and specifically allow access to the Sendmail server:. This example shows that any email sent from badspammer.

Email sent from the tux.