Unfortunately no, spamdyke isn't designed with the idea of different timeouts for different reasons. It will always keep the connection open as long as there is any chance the message could be allowed. For example, if your configuration includes a recipient whitelist and the remote IP is blacklisted, spamdyke won't close the connection until the recipients are given, just in case one of them is on the whitelist. Even when it's no longer possible to match a whitelist, spamdyke still won't close the connection because the remote client could sent a RSET command and begin a new session.
Your only option is to set a lower idle timeout, anything else would require a major refactoring of spamdyke's code. Sorry! -- Sam Clippinger On Mar 10, 2017, at 4:11 AM, Alessio Cecchi via spamdyke-users <spamdyke-users@spamdyke.org> wrote: > Hi, > > some months ago we switch from rblsmtpd to spamdyke in order to have more > info in the log about blocked IP. But after switch to spamdyke the number of > concurrency incoming SMTP sessions was increased about 10 time. > > This because with rblsmtpd we set a timeout of 10 seconds and spamdyke have a > global timeout that we set at 180 seconds (idle-timeout-secs). So when an IP > in blacklist connects to our MX it grabs a qmail-smtpd process for 180 > seconds instead of 10. > > Increasing the number of /var/qmail/control/concurrencyincoming is not a > solution because we expose our cluster to receive a number of sessions that > we could be unable to manage. > > Can spamdyke close a connections with IP in blacklist after a time shorter > than idle-timeout-secs? > > Here an example of timeout: > > with spamdyke > > $ time telnet mx01.mail.net 25 > Trying 192.168.1.135... > Connected to mx01.mail.net. > Escape character is '^]'. > 220 mx01.mail.net ESMTP > helo ciao.com > 250 mx01.mail.net > MAIL FROM: ales...@ciao.it > 250 Refused. Your IP address is listed in the RBL at www.spamhaus.org: > http://www.spamhaus.org/query/bl?ip=19.9.131.86 > RCPT TO: ales...@ciao.com > 554 Refused. Your IP address is listed in the RBL at www.spamhaus.org: > http://www.spamhaus.org/query/bl?ip=19.9.131.86 > > [ here we should close the connection ] > > DATA > 554 Refused. Your IP address is listed in the RBL at www.spamhaus.org: > http://www.spamhaus.org/query/bl?ip=19.9.131.86 > 421 Timeout. Talk faster next time. > Connection closed by foreign host. > > real 3m46.105s > user 0m0.000s > sys 0m0.000s > > with rblsmtpd: > > $ time telnet mx01.mail.net 25 > Trying 192.168.1.135... > Connected to mx01.mail.net. > Escape character is '^]'. > 220 rblsmtpd.local > Connection closed by foreign host. > > real 0m10.389s > user 0m0.000s > sys 0m0.000s > > Thanks > > -- > Alessio Cecchi > Postmaster @ http://www.qboxmail.it > https://www.linkedin.com/in/alessice > > _______________________________________________ > spamdyke-users mailing list > spamdyke-users@spamdyke.org > http://www.spamdyke.org/mailman/listinfo/spamdyke-users
_______________________________________________ spamdyke-users mailing list spamdyke-users@spamdyke.org http://www.spamdyke.org/mailman/listinfo/spamdyke-users
