antispam - Unable to determine the destination user

[Romanczyk Guillaume]

Hello,
I'm trying to install dovecot antispam plugin and I've some problems
with dspam user.
When I move a mail out of 'SPAM' folder I have this error in my
/var/log/messages :

  Oct 28 17:01:41 tony2 imap: antispam: /usr/bin/dspam --source=error
--class=innocent --signature=47de4679174462472577556 ...
  Oct 28 17:01:41 tony2 dspam[24313]: Unable to determine the
destination user
  Oct 28 17:01:41 tony2 dspam[24313]: DSPAM agent misconfigured: aborting

I've tried to install it by 'emerging' and compiling from sources but
with the same result.

plugin .config :

  BACKEND=dspam-exec
  DOVECOT=/usr/include/dovecot
  INSTALLDIR=/usr/lib/dovecot/imap
  USER=vpopmail      
  GROUP=vpopmail
  #(same result with different user/group)
  antispam_dspam_args = --user;$EXT@$USER
  DEBUG=syslog
  DEBUG_VERBOSE=1
  PLUGINNAME=antispam

Mail server configuration :
- NetQmail  (1.05-r8)
- Vpopmail (5.4.16)
- Dovecot     (1.1.4-r1)
- dspam       (3.8.0-r13)
All these packages are emerge without mysql support.

If someone is able to give me some help...

--
Guillaume Romanczyk
Itaapy <http://itaapy.com>             Tel [phone]
9 rue Darwin, 75018 Paris              Fax [phone]

[Claudio Prono]

Try to put in dspam.conf that line:

MySQLUIDInSignature on



Romanczyk Guillaume ha scritto:

> Hello,
> I'm trying to install dovecot antispam plugin and I've some problems
> with dspam user.
> When I move a mail out of 'SPAM' folder I have this error in my
> /var/log/messages :
>
>  Oct 28 17:01:41 tony2 imap: antispam: /usr/bin/dspam --source=error
> --class=innocent --signature=47de4679174462472577556 ...
>  Oct 28 17:01:41 tony2 dspam[24313]: Unable to determine the
> destination user
>  Oct 28 17:01:41 tony2 dspam[24313]: DSPAM agent misconfigured: aborting
>
> I've tried to install it by 'emerging' and compiling from sources but
> with the same result.
>
> plugin .config :
>
>  BACKEND=dspam-exec
>  DOVECOT=/usr/include/dovecot
>  INSTALLDIR=/usr/lib/dovecot/imap
>  USER=vpopmail        GROUP=vpopmail
>  #(same result with different user/group)
>  antispam_dspam_args = --user;$EXT@$USER
>  DEBUG=syslog
>  DEBUG_VERBOSE=1
>  PLUGINNAME=antispam
>
> Mail server configuration :
> - NetQmail  (1.05-r8)
> - Vpopmail (5.4.16)
> - Dovecot     (1.1.4-r1)
> - dspam       (3.8.0-r13)
> All these packages are emerge without mysql support.
>
> If someone is able to give me some help...
>

--
------------
Claudio Prono
Systems Development @ Atpss.net Srl, Divisione Implementazione Sistemi
Via San Bernardino, 17 - 10137 Torino (TO) - IT
Tel [phone]  Fax [phone]
PGP Fingerprint: 75C2 4049 E23D 2FBF A65F  40DB EA5C 11AC C2B0 3647
Disclaimer: http://atpss.net/disclaimer
------------

[Romanczyk Guillaume]

Claudio Prono a écrit :
> Try to put in dspam.conf that line:
>
> MySQLUIDInSignature on
>
>  
Even if I do not use MySql ?

--
Guillaume Romanczyk ~ System Administrator
Itaapy <http://itaapy.com>             Tel [phone]
9 rue Darwin, 75018 Paris              Fax [phone]

[Hugo Monteiro-2]

Romanczyk Guillaume wrote:
> Claudio Prono a écrit :
>> Try to put in dspam.conf that line:
>>
>> MySQLUIDInSignature on
>>
>>  
> Even if I do not use MySql ?
>

If you don't use MySQL you will need to use the --user parameter to set
the corresponding owner of the signature.

Then you have another problem. You either run the dspam call as the same
_system_ user as what you are providing in the --user parameter, eg. run
it as real system user johndoe with --user johndoe, or you are running
the dspam call as a generic system user, such as "mail" or other. In
that case you will need to tell dspam to trust that user in dspam.conf -
look for the Trust directive.

Another way would be to use the recent (CVS) external lookup feature to
remap the virtual user to an authorized system user. Either the
"johndoe" if there are real system users, or the generic one.

Regards,

Hugo Monteiro.

--
ci.fct.unl.pt:~# cat .signature

Hugo Monteiro
Email : hugo.monteiro@...
Telefone : [phone] Ext.15307

Centro de Informática
Faculdade de Ciências e Tecnologia da
                   Universidade Nova de Lisboa
Quinta da Torre   2829-516 Caparica   Portugal
Telefone: [phone]   Fax: [phone]
www.ci.fct.unl.pt      apoio@...

ci.fct.unl.pt:~# _

[Romanczyk Guillaume]

Hello,

> If you don't use MySQL you will need to use the --user parameter to
> set the corresponding owner of the signature.
>
> Then you have another problem. You either run the dspam call as the
> same _system_ user as what you are providing in the --user parameter,
> eg. run it as real system user johndoe with --user johndoe, or you are
> running the dspam call as a generic system user, such as "mail" or
> other. In that case you will need to tell dspam to trust that user in
> dspam.conf - look for the Trust directive.
>

Thank's for this reply,
I've check the user used to launch dspam in .config file of dovecot
antispam and it's vpopmail.
In my dspam.conf I've Trust vpopmail, so I think it should be great.

When a mail comes into qmail I use the .qmail-default to check the mail
with dspam :
| /usr/bin/dspam --mode=teft --deliver=innocent --feature=noise
--tokenizer=chained --user $EXT@$USER --stdout |
/var/vpopmail/bin/vdelivermail '' bounce-no-mailbox

In this configuration the "virtual' user is mentionned by $EXT@$USER ,
but if I write :
antispam_dspam_args = --user;$EXT@$USER
It doesn't work as If I write :
antispam_dspam_args = --user;%u


Regards,
Guillaume Romanczyk.

--
Guillaume Romanczyk ~ System Administrator
Itaapy <http://itaapy.com>             Tel [phone]
9 rue Darwin, 75018 Paris              Fax [phone]