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RE: Using "time sent" to Identify Spam??
By croc on 7/19/2009 6:42:38 PM , Rating: -1
Why didn't you set your email server to stop acting as an open relay? Do you get money from spammers for relaying their spam?

RE: Using "time sent" to Identify Spam??
By psychobriggsy on 7/20/2009 6:24:36 AM , Rating: 2
How did you get to this conclusion?

You don't need to send email from the domain's mail server for it to have a "From:" email address. This is one of the biggest flaws with SMTP, although there are some systems in place to try and stop it like domain keys and so on, but that requires spam filter and email client support.

By Mitch101 on 7/20/2009 8:44:08 AM , Rating: 2
You could turn on reverse lookup but there are so many mis-configured e-mail servers out there on the web. Many without correct DNS records, missing DNS records like they brought the sever online before the DNS records are in place or never configured a DNS record for that e-mail server. If you turn on reverse lookup you would wind up blocking tons of legitimate e-mail so most companies are forced to leave it off. I would love to turn on reverse lookup and even add certificates but the e-mail field has a lot of lousy admins.

Yahoo used to bring up e-mail servers before the DNS records are in place. Sadly a lot of business people have and use Yahoo accounts.


