HEATKEYS

UltraTools is a complete set of free DNS and domain tools, which test the health of your domain name servers, websites and online hosting environment.

Wormly offers server monitoring, website monitoring and uptime monitoring to keep you online and performing fast. Remote monitoring from outside the firewall alerts you when failures occur, while internal server health monitoring reveals problems bef...

Test in real time your HTML emails for campaigns, newsletters and others before sending them.

Check your newsletter

Email marketing software built for designers and their clients to run successful email campaigns.

SMTP Logic is a complete enterprise email gateway that integrates easily with your email infrastructure. Configure email routing, message tracking, compliance, anti-spam, deliverability, analytics, workflow, ad injection and much more using a simple ...

Generate an instant preview of your email in the most popular email clients! Instant email testing & code analysis.

Offer free dynamic DNS and static DNS to any top level domains. DNS supports Dynamic IP that allow you to run websites, ftp, or mail servers through any broadband connections with dynamic IP.

Email Security Grader: Is your mail server secure? Take the test and get a security score for your corporate mail infrastructure.

DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering. Explore monitoring products and free DNS tools at DNSstuff.

Free email marketing service from MailChimp. Design, send, and track HTML email campaigns with our simple tools. Get a fully functional free account.