Hello Phil,
Phil Howard ttiphil@gmail.com (Mi 21 Apr 2010 16:32:36 CEST):
I'm setting up a Postfix and Dovecot combination. What I want to do is have a user database that (1) is not running from some engine (so not LDAP or SQL or such) ... and (2) is completely disassociated from system users (e.g. most email users are not in /etc/passwd and most /etc/passwd users are not email users). Ideal would be a one-file solution, which can be managed by text editing or simple command line tools. But what I want is ONE file that both Postfix (for valid recipients) and Dovecot (for user login
A recent demonstration of a German postfix expert used a sed-Script to convert (basically cut everything behind the first „:“) the dovecot passdb file to a postfix readable text file (and convert this to a hash(?)).
I'm not sure, if postfix really can't read a passdb (passwd-like) file. Probably it (postfix) isn't flexible enough for doing this, or the expert didn't want to show it.
As an exim user I'd suggest using exim - and enjoing real flexiblity ;-) The solution I'd prefer is (d) - it makes your exim independend on the userdb/passdb used by dovecot, you're just talking to the auth-master. (Something I'd implement additionally is a „softfail“ (4xx error) in case the socket is not usable.)
# exim config snipped - the dovecot passdb is /etc/vmail/passwd
# for better readability of the (d) alternative below (using
# exims macro feature
SOCKET = /var/run/dovecot/auth-master
REQUEST = VERSION\t1\t0\nUSER\t$pid\t$local_part\tservice=imap\n
# local user router
# chose (a), (b), (c), (d)
vmail:
driver = accept
#(a) local_parts = lsearch;/etc/vmail/passwd
#(b) condition = ${lookup{$local_part}lsearch{/etc/vmail/passwd}{true}}
#(c) condition = ${lookup{$local_part@$domain}lsearch{/etc/vmail/passwd}{true}}
#(d) condition = ${if match {${readsocket{SOCKET}{REQUEST}}} {(?m)^USER}}
transport = dovecot
# dovecot transport
# dovecot uses uid vmail for accessing all mailboxes (userdb static)
dovecot:
driver = pipe
command = /usr/lib/dovecot/deliver -d $local_part@$domain
user = vmail(…)
smallish setup on one server, with probably a max of 50 to 100 users and 50 or so role account mailboxes over the next year or two. Any recommendations?
Use Exim ;-)
Best regards from Dresden/Germany
Viele Grüße aus Dresden
Heiko Schlittermann-- SCHLITTERMANN.de ---------------------------- internet & unix support - Heiko Schlittermann HS12-RIPE ----------------------------------------- gnupg encrypted messages are welcome - key ID: 48D0359B --------------- gnupg fingerprint: 3061 CFBF 2D88 F034 E8D2 7E92 EE4E AC98 48D0 359B -