All correct. Using the server's IP address as part of the graylist criteria would end up blocking everything from Gmail, Hotmail, Yahoo! and any other large service that uses multiple outgoing servers.
Dealing with bounced spam messages is a tough problem that spamdyke can't really solve. Content-based spam filters like SpamAssassin are probably your only choice. -- Sam Clippinger Ulrich C. Manns wrote: > I have deleted the whole directory in //var/qmail/spamdyke/graylist/ > of this domain. Now i can see how it works. > > I understand the way your graylisting works. You don’t graylist by > server because if a email comes from a big freemailer it is possible > that the second sending comes from a different server. Am i right? > > As the domain was used by a spammer as /mail from/ domain, there are > many emails whit the same /mail to/, so i get many bounces to the same > recipient from many different servers. All of them with the sender > /(unknown)/. > > I see there is no way to stop these spam bounces. As i use > /smtproutes/ spamdyke could not check if the recipient is ok. My Qmail > sends all of these bounces to our customer. No problem at all, because > our customer bounces all email which have no valid recipient. It’s > just a lot of work for spamdyke and Qmail. ;-) (5000 email/hour == 1% > CPU load). > > Thanks for your work on spamdyke and thanks for your support. > > Ulrich > > ------------------------------------------------------------------------ > *Von: *Sam Clippinger <[email protected]> > *Antworten an: *spamdyke users <[email protected]> > *Datum: *Wed, 5 Aug 2009 02:41:19 +0200 > *An: *spamdyke users <[email protected]> > *Betreff: *Re: [spamdyke-users] Greylisting Problem > > If you're receiving a lot of these bounce messages from other servers, > is it possible this particular server has sent a message in the past? If > so, the graylisting has already taken place and future messages are > allowed without delay. > > If not, I'd look for errors in the logs and check the amount of free > blocks/inodes on your server's drive. Have you looked through the > graylist folder structure to see if an entry for this sender/recipient > combo already exists? If you delete the entry, is the next bounce > message graylisted? > > -- Sam Clippinger > > Ulrich C. Manns wrote: > > Hi, > > > > at this moment i receive lots of non delivery reports from many > > servers because one of our domains was used as /mail from/ by a spammer. > > > > Many of the servers are real MTAs. Many of them will be graylisted. > > But not all of them. I found a lot of emails, which are /ALLOWED/. > > > > Look at the screenshot. > > > > As you see the third e-mail is an reply, replies don’t have a /from/ > > entry. But why it is not graylisted? The first e-mail was graylisted, > > you see the little clock? > > > > Is this by design? Or is ist a bug in my config? Or....??? > > > > Regards, > > Ulrich > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > spamdyke-users mailing list > > [email protected] > > http://www.spamdyke.org/mailman/listinfo/spamdyke-users > > > _______________________________________________ > spamdyke-users mailing list > [email protected] > http://www.spamdyke.org/mailman/listinfo/spamdyke-users > > ------------------------------------------------------------------------ > > _______________________________________________ > spamdyke-users mailing list > [email protected] > http://www.spamdyke.org/mailman/listinfo/spamdyke-users > _______________________________________________ spamdyke-users mailing list [email protected] http://www.spamdyke.org/mailman/listinfo/spamdyke-users
