Tag Archives: SMTP

Command Line Email in Cygwin

Cygwin provides a Linux-like environment on Windows, but unfortunately the heirloom mailx (aka nail) email utility is not included as a supported package. I previously recommended mailx for quick command-line email in Linux. For Cygwin users, a similar utility is … Continue reading

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Heirloom mailx for Quick Command-Line Email

If you manage Linux systems, you may need a quick way to send email from the command line. My recommended solution for simple scripted email is the Heirloom mailx utility. There are several reasons I like this tool. My favorite … Continue reading

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RHEL 6 and CentOS 6 Email Server

Official Red Hat Enterprise Linux (RHEL) 6.x documentation for Email Servers is available in the RHEL 6 Doc – Chapter 17, Mail Servers. This information applies to CentOS 6 as well. The default MTA for SMTP service is now Postfix. … Continue reading

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NO inspect esmtp

If your email server or email gateway is behind a Cisco ASA firewall, double-check those default inspection rules. TURN OFF ESMTP Inspection to guarantee that the firewall is not messing up your mail flow. I have seen this problem over … Continue reading

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