Hi! I have made a patch to rblsmtpd that allows to call an arbitrary program whenever a connecting mailserver is in one of the lists. I use it to send the postmasters of this host and the respective domains a short mail saying that they have an open relay and they should fix it. This is maybe not what everybody wants, because it generates traffic. But I have my users in the back complaining about not getting mails from the outside. So I started to send out mails manually to the respective postmasters to close their open relays. This was getting too much work, therefore this patch: ftp://epigenomics.org/pub/oss/ucspi-tcp/rblsmtpd.patch When rblsmtpd is called with the new option "-x /path/to/program", it calls the program every time a connecting mailserver is blocked and quits. It calls the given program, which gets all the environment variables from tcpserver and a new one set by rblsmtpd: $RBLMESSAGE, which is the message the connecting mailserver was rejected with. The program now can make decisions based on $TCPREMOTEHOST et. al. to do anything like sending mail to postmaster@$TCPREMOTEHOST. I do know that the error should show up in the logs of the remote host, but when they are misconfigured, it is likely the postmaster does not look into the logs. I do hope she/he is looking into the mailbox... In the ftp-directory is a sample bash script called rblscript that sends a short mail to the postmaster of the remote host. Please feel free to send any additions/corrections to me. Greetings -- Robert Sander Computer Scientist Epigenomics AG Bioinformatics R&D www.epigenomics.com Kastanienallee 24 +493024345330 10435 Berlin
