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On Fri, 14 Feb 2014, matthias lay wrote:
On 02/14/2014 08:27 AM, Steffen Kaiser wrote:
On Fri, 7 Feb 2014, matthias lay wrote:
I experienced that if a Mailaddress matches several users the delivery is
aborted.
----------------
dovecot: auth: Error: ldap(christian.t...@securepoint.de): LDAP search
returned multiple entries
dovecot: auth: ldap(christian.t...@securepoint.de): unknown user
dovecot: lda: Error: user christian.t...@securepoint.de: Auth USER lookup
failed
-----------------
now my question, is there a way to have a mail like that delivered to all
users that matches the lookup?
havent found anything in the docs.
This is a job of your MTA.
MTA is qmail and doesnt know anything about users. dovecot uses usernames for
mailboxes. lets say
/var/mail/userA/Maildir
/var/mail/userB/Maildir
both users have mailaddr x...@example.com mapped in Active Directory. Now when
mails arrive lda is called like
dovecot-lda -d x...@example.com <mailto:dafan.z...@securepoint.de> -m INBOX
and theres my problem.
You have implicitly created mail aliases for your users. qmail has to
resolve this alias "XY" into the users A and B.
You could wrap your call to the Dovecot LDA by a script resolving the
aliases somehow, e.g.:
#!/bin/bash
tmpf=/tmp/split.$$.tmp
# save the message in case we have multiple recipients
cat - >$tmpf
ldapsearch "mailtarget=$1" samaccountname | \
awk '$1 == "sAMAccountName:" { print $2 } ' | \
while read uid; do
dovecot-lda -d "$uid" ..... < $tmpf
rc=$?
if test $rc -gt 0; then
rm -f $tmpf
exit $rc
fi
done
rm -f $tmpf
adjust ldap query and attribute names and call to MDA.
This is not really nice, because you cannot handle individual problems,
e.g. what shall happen if delivery to userB fails? Shall userA get the
message, shall delivery to userA succeeded, but to retried to userB?
Currently the first error is returned to qmail and probably one user gets
the same message again and again, because of a problem of another user's
mailbox. You could return $rc at the very end, then qmail gets the success
status of the delivery attemp to the last user.
I wouldn't do such stuff in a non-private environment.
- --
Steffen Kaiser
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