Medium CLI - A command line Interface for reading Medium stories
intoDNS - IntoDNS checks the health and configuration and provides DNS report and mail servers report.
Phunt - Product Hunt command line interface
Dnsstuff - DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering.
Mac CLi - OS X command line tools for developers
MxToolBox - All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.