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SMTPDiagPro is a small tool to test the configuration of a SMTP-Server including DNS MX.Developed to test for example whether the DNS MX records are set correctly and if an Exchange server via SMTP from the Internet is properly accessible. So he accepts or rejects the right messages and the antivirus program works well.

You can save all settings to be able to repeat tests quickly.

FEATURES:

Don't need to install (portable app)
Read DNS MX and shows welcome message
Send Mail to a single host, the first DNS MX host or all DNS MX hosts
Save settings in profiles
Can have unlimited recipients or attachments
Auto-text for subject and body
Shows detailed information about the actions
Specify local hostname
Use Encryption with TLS and SSL
test hosts for begin blacklists using » spamhaus.org
test hosts for begin open relays
Spam test option using » GTUBE and keywords
Virus test option using » EICAR
Test for TLS support
Test for SSL support