Used SMTPUtils for Windows?
Developer’s Description
SMTPUtils is an open source tool, intended to be used to secure mail servers, through testing or analysis, which provides the service manager or staff of computer security, a summary of its implementation.
Version 03 Add support for html attachment inline in Antivirus test,Add customize dns in DNSBL test,Fix bugs in check updates.
Used SMTPUtils for Windows?
Explore More

FNET
Free
Wi-Host
Free
SysMate Host File Walker
Free
FBENCH Tthroughput Benchmark Portable
Free
PC Remote Software Deployment
Trial version
DynamicDNS for Windows 8
FreePaessler Network Card Packet Counter
Free
TunnelEx
Trial version
Promcis Netflow Collector x64
Trial version
Simple Network Tools for Windows 8
Free
Licas Lite
Free
Licas
Free