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-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Brenton Sent: Tuesday, February 18, 2003 3:18 PM To: Kuschel Sebastian Subject: [Dbmail] Reprise: POP-Before-SMTP and Postfix Hello Kuschel, This is a summary of how to use the POP/IMAP authentication provided by dbmail with Postfix. I'm also throwing in the method for getting Postfix to use dbmail's aliases table to decide whether or not to accept inbound mail, at the end. ----- To make POP/IMAP-before-SMTP work with Postfix, you must first make sure that Postfix speaks MySQL... hopefully, you'll already know how to do that, 'cuz I'm not going to tell you here. B-) In your postfix main.cf file, you need a line like: mynetworks = 192.168.0.0/16, mysql:/etc/postfix/my_net.cf The file /etc/postfix/my_net.cf will contain: user = postfix password = [password] dbname = dbmail table = pbsp select_field = since where_field = ipnumber additional_conditions = and unix_timestamp() - unix_timestamp(since) <= 18000 With these parameters, any user who has done a POP/IMAP authorization within the past 1800 seconds (30 minutes) will have their IP validated for Postfix. At 1801 seconds, the IP will not be validated... Oh, and, of course, you need to enable DBMail's daemons to feed this, with the following two settings in dbmail.conf: DBMAIL_POP_BEFORE_SMTP = yes DBMAIL_IMAP_BEFORE_SMTP = yes --- If you're using Postgres instead of MySQL, the patches to make Postfix talk to Postgres tables are at http://www.rhyme.com.au/postfix.html . The "additional_conditions" line for my_net.cf needs to be changed, because of differences in the handling of time fields in Postres. --- You can have Postfix consult dbmail's aliases table for local users by adding the following to main.cf: local_recipient_maps = mysql:/etc/postfix/mailbox.cf where mailbox.cf contains the parameters for checking an address against the dbmail aliases table, such as: user = postfix password = password dbname = dbmail table = aliases hosts = 192.168.2.2 select_field = alias where_field = alias --- This last change has reduced considerably the number of regular expression spam filters I needed, because we have a number of "spam trap" addresses that I get bounce messages for before our real customers get hit. By the time they make it through to the customer emails, I've already blocked their IPs and email addresses... -- Jeff Brenton President, Engineered Software Products, Inc http://espi.com Questionable web page: http://dididahdahdidit.com Liberalism grants you the freedom to advocate any idea*. * Please see http://www.dididahdahdidit.com/except.php for a current list of exceptions _______________________________________________ Dbmail mailing list Dbmail@dbmail.org https://mailman.fastxs.nl/mailman/listinfo/dbmail
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