can't get check_recipient_access working Hi, When I try to send mail to an existing user I get the following error: 451 4.3.5 Server configuration error This is in my main.cf: smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination,  check_recipient_access mysql:$config_directory/mysql_virtual_user_maps.cf this is mysql_virtual_user_maps.cf user = dbuser password = secret dbname = postfix hosts = maildb table = mailbox select_field = access where_field = username and the mailbox table looks like this: CREATE TABLE IF NOT EXISTS `mailbox` (   `mailbox_id` int(11) NOT NULL,   `username` varchar(255) NOT NULL default '',   `password` varchar(255) NOT NULL default '',   `name` varchar(255) NOT NULL default '',   `maildir` varchar(255) NOT NULL default '',   `quota` int(10) NOT NULL default '0',   `domain` varchar(255) NOT NULL default '',   `created` datetime NOT NULL default '0000-00-00 00:00:00',   `modified` datetime NOT NULL default '0000-00-00 00:00:00',   `active` tinyint(1) NOT NULL default '1',   `access` varchar(255) NOT NULL default 'OK',   PRIMARY KEY  (`mailbox_id`),   KEY `username` (`username`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='Virtual Mailboxes'; When I leave out check_recipient_access everything works fine, but I don't  want to accept mail for non existing users Can anyone tell me what I did wrong? Regards Chantal >From dlnirllc@cs.waikato.ac.nz  Sat Apr 26 15:48:55 2008 Message: 1 Date: Sat, 16 Feb 2008 14:44:50 +1300 (NZDT) From: "Peter Reutemann"  Subject: Re: [Wekalist] Questions about the experimenter To: "Weka machine learning workbench list." 	 Message-ID: 	<44445.408.84.01.039.1444454088.sujmdnjk@webmail.scms.waikato.ac.nz> Content-Type: text/plain;charset=3Diso-8859-1 > What I am not sure about: is there a way to have seperate experiment > results > in one > database? I was not able to achieve this (everything seems to go into the > Results0 table > automatically) and had to use a different mysql database for each > experiment > that i want > to keep seperated. The Experiment setup, i.e., cross-validation/percentage-split (randomized/fixed) and their parameters, defines a single experiment. Basically, as soon as you can't compare it anymore (you can't compare cross-validation and percentage-split results, or 2-fold and 10-fold CV), the results will be directed into another table. If you always use the same setup, you will need to create different databases for it (like you create different output files). >> 3) When one shows the summary or Ranking, a lot of pairwise significance >> > tests are used. >> > Are these tests Bonferroni adjusted? (does the "corrected" shown with >> paired >> > t-test indicate >> > Bonferroni correction for multiple significance tests or is this a >> different >> > kind of correction? >> >> Copy/paste from the weka.experiment.PairedCorrectedTTester Javadoc: >> >> Behaves the same as PairedTTester, only it uses the corrected resampled >> t-test statistic. >> >> For more information see: >> >> Claude Nadeau, Yoshua Bengio (2001). Inference for the Generalization >> Error. Machine Learning.. >> > > I dug that up and as far as my little understanding of statistics goes, > the > corrected > t-test corrects for the under-estimate of variance when one does repeated > CVs. > > So it seems that there is no (automatic) Bonferroni adjustment -- at least > it is nowhere > mentioned in Weka. Sorry, but my statistics knowledge is even less... HTH Cheers, Peter -- = Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cs.waikato.ac.nz/~fracpete/           Ph. +64 (7) 858-5174 ------------------------------