| SMTP Tools |
| Open Relay Test |
Think your mail server simply can't be a mail relay? Test it here. |
Laboratory for the Processing of Analog and Digital Signals |
| DNS Blacklists Check |
Is your mail server running? Somebody, somewhere has probably black listed it. |
dr.moensted |
| External Sender Test |
Does your current mail server/firewall config allow incoming 100% Compliant SMTP? |
dymeta |
| Domain Name Service And Other IP Tools |
| ZoneCheck |
Checks your authoritative nameserver, your list of secondary nameservers, and email delivery. Includes a batch mode, too. |
AFNIC |
| DNS Sleuth |
Detects the most common errors in DNS zones, and points you to the solutions. |
Martin Mares |
| DIG It |
Make sure your DNS servers are properly configured... especially those MX records. |
Men and Mice |
| Internet Query Tools |
Track down suspicious domains... and don't forget to report them. |
Demon |
| IP Address Calculators |
Subnet Mask, Network/Node, IP Address Converter, more. |
Mobrien Tools |
| Subnet Cheat Sheet |
Subnet Mask, Guide to Sub-Class C Blocks. CIDR Notation. |
Brian Aker's World |
| Traceroute Off-Site |
How many routers between the world and you? How fast? How accessible? |
TRaceRT |
| Whois and Reverse IP |
Search by IP address, domain name, even partial name. |
Whois Source |
| Internet Surveys |
| Open Relay Advisory |
Check the open relay status of your SMTP mail server. |
dymeta |
| Security Vulnerability Database |
Current software vulnerability advisories. |
OSVDB |
| Global Virus Watch |
Up-to-the-minute virus outbreak reports. |
trimMail's Email Battles |
| Internet Health Report |
Is it you or the Internet? Check Internet traffic between major broadband trunks. |
Keynote |
| Internet Traffic Report |
Check the flow of data around the world. Score of 100 is best. |
AnalogX |
| Firewall Port Scan Watch |
Who's knocking on your firewall's door? Track exploit and virus trends worldwide. |
SANS Internet Storm Center |
| DNS Daily Changes |
Number of .COM, .NET, .ORG, .INFO, .BIZ, .US, .WS domains transferred today. Who won, who lost. |
Name Intelligence |
| Miscellaneous Email Management Tools |
| Regular Expression Test |
Check regular expressions before inflicting them on your trimMail Inbox. |
Northern Virginia Community College |
| Find Business or Residence |
Track down a business or residential address by city/state or phone. Search within xx miles. |
Switchboard |
| FBI Internet Fraud Complaint Center |
File Internet-based complaints with the FBI. |
US Federal Bureau of Investigation |
| FTC Spam Complaint Form |
Unsolicited Commercial E-mail Complaint Form. Or forward spam to UCE@FTC.GOV. |
US Federal Trade Commission |
| Social Security Fraud Form |
Tell Social Security your number was stolen. |
US Social Security Administration |
