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For instance, if you want to use postfix, you may have to uninstall sendmail packages first. Generally, you can only have one application for using SMTP per email server.
- Install the application of your choice.
- Here are the usual steps for setting up a mail transfer agent: Basic steps for secure mail server configuration These best practices can be applied to the configuration of most commonly used email server applications, regardless of your OS platform. There are many popular mail transfer agents, and mail delivery agents that businesses use, such as sendmail, Postfix, Microsoft Exchange Server, Apache James, MDaemon, and Citadel. Sometimes, even the most experienced IT professionals forget about the basics.įor the sake of this piece, I use the phrase “email server” to refer to backend programs that are mail transfer/transport agents (SMTP), or mail delivery agents (e.g. This isn't a comprehensive guide to secure email configuration, and your business may be subject to compliance standards that aren't covered here, depending on your industry.
But if an email server that your business operates is subject to attack, not only can your business experience lost productivity, you can also be subject to litigation for leaking sensitive data.įortunately, there are some basic best practices for configuring your email server in a more secure way, which should significantly reduce your risk. Enterprises are often required to host their own email servers for the sake of compliance and practicality, instead of using one of many third party email services that are often offered by ISPs.
A significant percentage of online cyberattacks are email related.