[Mailman-Users] Postfix has problems with Mailman aliases database

[malgosia askanas (staff)]

I am installing Mailman on a machine running Postfix. I put in Postfix's 
configuration file the statement

alias_maps = hash:/etc/aliases, hash:/var/chroot/htdocs/mailman/data/aliases

and ran Mailman's "genaliases" command to generate the alias database (which
now contains aliases for 2 lists).  But it looks like my Postfix is choking on 
Mailman's aliases.  I get a steady stream of the following complaints in the
maillog:

Jun  9 12:45:20 polyhedra postfix/smtpd[16195]: fatal: open database /var/chroot/htdocs/mailman/data/aliases.db: Invalid argument
Jun  9 12:45:21 polyhedra postfix/master[301]: warning: process /usr/local/libexec/smtpd pid 16195 exit status 1
Jun  9 12:45:21 polyhedra postfix/master[301]: warning: /usr/local/libexec/smtpd: bad command startup -- throttling

Does anybody have any advice, please?  I notice the following seeming mismatch,
but I don't know if it's relevant:

For the Postfix aliases database:
# file /etc/aliases.db
/etc/aliases.db: Berkeley DB (Hash, version 7, native byte-order)

For the Mailman aliases database:
# file /var/chroot/htdocs/mailman/data/aliases.db
/var/chroot/htdocs/mailman/data/aliases.db: Berkeley DB 1.85 (Hash, version 2, native byte-order)


Many thanks in advance,

-malgosia