Entries Related to ‘Postfix’

Ever felt bewildered when troubleshooting a problem with your CentOS server? These troubleshooting tools and best practices can help you solve most of your problems swiftly and efficiently.

Wouldn’t it be nice to have your server send you regular email about system issues? That’s an easy task for two simple SMTP email programs, sSMTP and Blat.

Control groups in Linux let you aggregate tasks to allow for hierarchical resource management and allocation. Here’s how you can take advantage of control groups to improve your systems’ efficiency.

Many network administrators know OpenSSL as a tool that implements Secure Sockets Layer (SSL) and Transport Layer Security (TLS) cryptographic protocols to secure your web surfing and email. But as we learned earlier this month, OpenSSL can do far more. With OpenSSL you can encrypt and decrypt files, verify file integrity, and see which encryption protocols and ciphers any server supports.

Every business needs email, but not every business wants an expensive propriety email server like Exchange Server. If you prefer a free mail server, consider Postfix, an open source email server that supports POP3, IMAP, and SMTP. Running Postfix on CentOS, an enterprise-level Linux distribution derived from Red Hat Enterprise Linux, gives you a reliable, proven messaging solution.

This tutorial explains how to use a recipe of Davmail, Fetchmail, Postfix, and Courier IMAP to interface standards-based e-mail clients with Exchange’s Outlook Web Access, and to integrate corporate and non-corporate e-mail accounts into a single inbox that’s not buried inside the store of the mail user agent.

While open source mail servers have always dominated the mail transfer market, enterprises expect much more than just simple mail transfer from their mail servers. How do you pick the right enterprise mail server for your business?