migrate from qmail to postfix
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From: Asif Iqbal on 3 Jul 2010 19:38 Hi All I am planning to migrate from qmail to postfix. Currently our qmail uses QMAILQUEUE, qmail-scanner, clamd, spamassassin, rbldnsd, greylite, qmail-pop, qmail-ldap, virtuals and ezmlm. (I hope I did not miss anything) I found few suggestions from the following articles http://www.irbs.net/internet/postfix/0207/1241.html [yr 2002] http://www.irbs.net/internet/postfix/0401/1049.html [yr 2004] http://johnleach.co.uk/documents/qmail-to-postfix/index.html [yr 2006] They are pretty old. Is there any new feature(s) relevant to qmail to postfix migration, that are not covered above and, were introduced in newer postifx? Also, if you followed any of those threads, is there some gotcha that might be missing in there? I am guessing I need to install postfix as the front-end, will be installed on a separate new box. Then use the qmail, currently running on the existing system, as the back-end. Hoping that will ease the migration, however not exactly sure how to do it, quite yet :-). (I have to go back read those threads/articles again.) Then eventually expire qmail. Not quite sure how to do that either, but I think have to do some MX tricks on that. Anyways, I am looking for comments/suggestions. Thanks -- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
From: Asif Iqbal on 3 Jul 2010 19:44 On Sat, Jul 3, 2010 at 7:38 PM, Asif Iqbal <vadud3(a)gmail.com> wrote: > Hi All > > I am planning to migrate from qmail to postfix. > > Currently our qmail uses QMAILQUEUE, qmail-scanner, clamd, > spamassassin, rbldnsd, greylite, qmail-pop, qmail-ldap, virtuals and > ezmlm. > (I hope I did not miss anything) I am pretty sure dovecot is the popular method of pop3 and will be recommended tool to replace qmail-pop Also I probably will need to use `recipient_delimiter = - ' for as one of the key steps to make dot-qmail work same Again, I have not used postfix as a SMTP server and looking for all the goodies that you can suggest :-). I used postfix only as client for my ubuntu laptop and used gmail account to smtp through. (kind a off-topic) > > I found few suggestions from the following articles > > http://www.irbs.net/internet/postfix/0207/1241.html [yr 2002] > http://www.irbs.net/internet/postfix/0401/1049.html [yr 2004] > http://johnleach.co.uk/documents/qmail-to-postfix/index.html [yr 2006] > > They are pretty old. > > Is there any new feature(s) relevant to qmail to postfix migration, > that are not covered above and, were > introduced in newer postifx? > > Also, if you followed any of those threads, is there some gotcha that > might be missing in there? > > I am guessing I need to install postfix as the front-end, will be > installed on a separate new box. > Then use the qmail, currently running on the existing system, as the back-end. > Hoping that will ease the migration, however not exactly sure how to > do it, quite yet :-). > (I have to go back read those threads/articles again.) > Then eventually expire qmail. Not quite sure how to do that either, > but I think have to do some > MX tricks on that. > > Anyways, I am looking for comments/suggestions. > > Thanks > > > > -- > Asif Iqbal > PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu > A: Because it messes up the order in which people normally read text. > Q: Why is top-posting such a bad thing? > -- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
From: Wietse Venema on 4 Jul 2010 02:54 Asif Iqbal: > I am guessing I need to install postfix as the front-end, will be > installed on a separate new box. > Then use the qmail, currently running on the existing system, as the back-end. See; http://www.postfix.org/STANDARD_CONFIGURATION_README.html#firewall Wietse
From: Jeroen Geilman on 4 Jul 2010 05:50 On 07/04/2010 01:38 AM, Asif Iqbal wrote: > Hi All > > I am planning to migrate from qmail to postfix. > > Currently our qmail uses QMAILQUEUE, qmail-scanner, clamd, > spamassassin, rbldnsd, greylite, qmail-pop, qmail-ldap, virtuals and > ezmlm. > (I hope I did not miss anything) > > I found few suggestions from the following articles > > http://www.irbs.net/internet/postfix/0207/1241.html [yr 2002] > http://www.irbs.net/internet/postfix/0401/1049.html [yr 2004] > http://johnleach.co.uk/documents/qmail-to-postfix/index.html [yr 2006] > > They are pretty old. > > It seems you managed to miss the postfix documentation. http://www.postfix.org/documentation.html It's so odd that people insist on NOT using the actual documentation. > Is there any new feature(s) relevant to qmail to postfix migration, > that are not covered above and, were > introduced in newer postifx? > > I would not recommend following old, or unsupported, documentation. Always use the latest official documentation, it includes the versions something was introduced at. > Also, if you followed any of those threads, is there some gotcha that > might be missing in there? > They're probably flagrantly wrong in about a dozen places. They always are. > I am guessing I need to install postfix as the front-end, will be > installed on a separate new box. > Then use the qmail, currently running on the existing system, as the back-end. > Hoping that will ease the migration, however not exactly sure how to > do it, quite yet :-). > I would suggest the opposite. postfix is much more flexible than that old crone. However, you can do it in any way that suits you. > (I have to go back read those threads/articles again.) > Then eventually expire qmail. Not quite sure how to do that either, > but I think have to do some > MX tricks on that. > > Anyways, I am looking for comments/suggestions. > > Thanks > Start with the URL Wietse gave you, it covers the basics. J.
From: Patrick Ben Koetter on 4 Jul 2010 08:10
* Asif Iqbal <vadud3(a)gmail.com>: > Currently our qmail uses QMAILQUEUE, qmail-scanner, clamd, > spamassassin, rbldnsd, greylite, qmail-pop, qmail-ldap, virtuals and > ezmlm. > (I hope I did not miss anything) Here's the typical way most people go: qmail -> postfix <http://www.postfix.org/BASIC_CONFIGURATION_README.html> qmail-scanner -> amavisd-new <http://www.ijs.si/software/amavisd/README.postfix.html> clamd -> integrated in amavisd-new spamassassin -> integrated in amavisd-new rbldnsd -> integral part of postfix greylite -> postgrey <http://postgrey.schweikert.ch/> qmail-pop -> dovecot <http://wiki.dovecot.org/MailServerOverview> qmail-ldap -> postfix <http://www.postfix.org/LDAP_README.html> virtuals -> postfix <http://www.postfix.org/VIRTUAL_README.html> You probably want to use Dovecot's "deliver" program as LDA in conjunction with virtual domain hosting ezmlm -> use with Postfix or replace with mailman > I am guessing I need to install postfix as the front-end, will be > installed on a separate new box. I suggest to replace qmail with Postfix and not make things more complicated adding another MTA. > Then use the qmail, currently running on the existing system, as the back-end. > Hoping that will ease the migration, however not exactly sure how to > do it, quite yet :-). Setup Postfix in parallel. Test locally. Ask people on this list if you don't understand the documentation or how to test. Then sync messages from old system to new one and retire old one. > Then eventually expire qmail. Not quite sure how to do that either, but I > think have to do some MX tricks on that. Leave MX and give new machine old (and valid MX) IP address. p(a)rick -- All technical questions asked privately will be automatically answered on the list and archived for public access unless privacy is explicitely required and justified. saslfinger (debugging SMTP AUTH): <http://postfix.state-of-mind.de/patrick.koetter/saslfinger/> |