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Open SMTP relay servers

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7 replies

by cyber_guy

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anyone have a list of open SMTP servers please leave me the site

thanks

7 replies

by jdclyde

Start scanning the web like the rest of them I guess.

Please tell us you actually have something valid in mind?

by cyber_guy

all i wanted was to send an email to one of my other classmates. just so we know how to do it.
it was a lab we had to do last semester! thats all i wanted to do! and NO there are no sites that publish UP TO DATE SMTP servers. clearly they would be shutdown!!

by tbragsda

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OK, If you really want to learn something about SMTP server, build your own. You can do it for free on just about any OS. Relay till your hearts content.

After you learn the incredibly command line operations of SMTP, do some more work and figure out how to protect it.

by jdclyde

How could anyone not assume the worst? Go back and look at the post and think about this site.

That is very similar to the people that say they are and administrator but need a way to find out the root password.

An app called LanGuard will scan an IP address for open ports and tell you if they are a mail relay.

I run this on all my systems monthly looking for new ports to be open. (first sign you are compromised)

by roger99a

Get a copy from a DNSBL list. Or you could check the IP addresses of the spam you get and try those. I'm seeing a lot of dial up and broadband IP addresses that are probably compromised by viruses and turned into SMTP proxies for spammers. A better solution would be to build one yourself and set it to relay from your specific IP. Otherwise you'll end up listed on a spam site and poison your IP address.

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