[Mailman-Users] Upgrading and converting mailman to postfix

Mark Sapiro mark at msapiro.net
Thu Apr 21 07:21:54 CEST 2011

On 4/20/11 7:59 PM, Steven Jones wrote:
> Hi,
> I have to upgrade a old mailman setup on RHEl3 and sendmail to RHEL6
> which comes with postfix by default...
> So,
> a) Docs or how easy is it to straight migrate from RHEL3 (2.1.5) to
> RHEL6  (2.1.12) ?

This is a RedHat packaging question. See the FAQ at
<http://wiki.list.org/x/KYCB>. If your RedHat package is 2.1.5-21 or
later, it should be no problem. If it is 2.1.5-20 or earlier, many files
and directories move as discussed in the FAQ, but the FAQ also tells you
where to find a migration script and RedHat's documentation.

> b) How easy is it to convert a sendmail setup with /etc/aliases to
> postfix?  any automated scripts?

No conversion is required. Postfix can use the same Mailman aliases as
Sendmail in /etc/aliases except that the path to the wrapper may change
from /var/mailman/mail/mailman to /usr/lib/mailman/mail/mailman because
of the file changes above.

On the other hand, the new package may make various changes in both
postfix and Mailman to enable Mailman/Postfix integration, in which case
all you'd need to do after migration is to remove Mailman's aliases from
/etc/aliases and run Mailman's bin/genaliases to generate the new aliases.

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    Better use your sense - B. Dylan

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