Re: Announcing cyrus-user-map, a local recipient map generator for Postfix
Hi Farzad, On Tuesday 10 March 2009 00:25:42 Farzad FARID wrote: Having just deployed a Cyrus Imap server with Postfix, with only virtual users and no Unix or LDAP based imap accounts, I needed a way to generate a local recipient map for Postfix. This map is used by Postfix to identify existing email accounts and correctly reject incoming mail received for unknown recipients (as in http://www.postfix.org/LOCAL_RECIPIENT_README.html). So I wrote a little tool that generates and update this map automatically, with the help of cron. You can download the script and documentation from my website http://www.pragmatic-source.com/en/opensource/source-code/cyrus-user- map-generate-cyrus-user-map-postfix or from GitHub: http://github.com/Farzy/cyrus-user-map Nice thing, but just out of curiosity, why don't you use postfix' recipient verification mechanism? In smtp_recipient_restrictions add reject_unverified_recipient at a reasonable position in these restrictions. Everything else automagically happens. Greetings, Stefan -- Stefan Schmidt listrea...@jsj.dyndns.org Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Re: Announcing cyrus-user-map, a local recipient map generator for Postfix
On Tuesday 10 March 2009 10:58:36 Farzad FARID wrote: Thanks for asking. In the Postfix Address Verification Howto (http://www.postfix.org/ADDRESS_VERIFICATION_README.html) it says that: : verification process This is a very heavyweight process, especially if we have the Cyrus database at hand :) So I think that looking up an entry in a hash map is much faster and doesn't involve any SMTP/LMTP connection. Postfix cashes to test result for a configurable time spam, with separately definable ranges for positive and negative test results. It is - after an initial learning period - basically a hash table lookup without the hazzles of manually generating the lookup table. And if the Postfix relay and the Cyrus database are not on the same physical computer, and someone's interested, I can extend my little tool to use a network connection to fetch the user database. Still no problem, as postfix has to deliver the mail sto cyrus somehow, either smtp or lmtp. The verification simply works here. Greetings, Stefan -- Stefan Schmidt listrea...@jsj.dyndns.org Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Re: Pop process hangs in the write()
Hi, On Monday 02 March 2009 12:33:43 ram wrote: I have problem at a clients end exactly same as described in this http://marc.info/?l=info-cyrusm=108967188821511w=2 A pop process blocks at write() for any mail at random. And they start getting pop lock issues I have checked with the customer , there is no IDS on their network Is there any other way I can debug this issue I have seen issues with pop3d's locking up some weeks agao while maintaining our University's Cyrus IMAPD installation. It turned out to be caused by the used file system for /var/lib/imap. We used reiserfs there - the system itself is a openSUSE 11.1 and has been older SUSE-variants before. After reformatting with xfs, which we have used for the mailbox partitions everything went smooth again. I didi not follow this issue, as the system had to be running without flaws in the shortest possible time. This should be no reiserfs-bashing. I use it frequently without problems, but here it broke something. HTH, Stefan -- Stefan Schmidt listrea...@jsj.dyndns.org Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
