Working with an external SPAM filter server

[tron]

We are looking at migrating our mail service to Zimbra. Currently, we have a cluster of servers that does virus and spam filtering. The suspect-spam messages are tagged with a X-header and delivered to the SMTP host. The SMTP host then uses procmail to drop the messages either into INBOX or a Quarantine mailbox.

Could I configure Zimbra to do this kind of delivery based on the X-header or is there a better way to do this with Zimbra?

Thanks in advance.

[KevinH]

Is the Quarantine a folder in the user's mailbox or a seperate mailbox? If it's just a folder you could create a default rule for each user to move thi mail to that folder on delivery. That way if user's like they can remove/modify the rule and it gives them finer control.

[tron]

Currently, QUARANTINE is just an IMAP folder, i.e., a folder in the user's mailbox. How do I create a default rule in Zimbra?

thanks for the help?

Originally Posted by KevinH

Is the Quarantine a folder in the user's mailbox or a seperate mailbox? If it's just a folder you could create a default rule for each user to move thi mail to that folder on delivery. That way if user's like they can remove/modify the rule and it gives them finer control.

[KevinH]

I think you can set that attribute with zmprov. Just create a filter via the UI an look at it via LDAP (sorry don't have the schema in front of me at the moment).

[tron]

So, let me clarify this, I need to add an attribute for each user I create with zmprov? There isn't a global one that I can set on a per CoS level?

Originally Posted by KevinH

I think you can set that attribute with zmprov. Just create a filter via the UI an look at it via LDAP (sorry don't have the schema in front of me at the moment).

[schemers]

correct. System-wide (and/or COS-wide) filters are planned for a future release.

roland

[tron]

Thanks, Kevin. The attribute name is zimbraMailSieveScript. However, the filter rule spans multiple lines, see below
require ["fileinto", "reject", "tag", "flag"];

# SPAM
if anyof (header :is "X-Spam-Flag" "YES" )
{
fileinto "/Junk";
}

How do I add an attribute with value that spans multiple lines with zmprov?

Originally Posted by KevinH

I think you can set that attribute with zmprov. Just create a filter via the UI an look at it via LDAP (sorry don't have the schema in front of me at the moment).

[schemers]

You should be able to quote the newlines via \n:

zmprov ma some@account.domain zimbraMailSieveScript "a\nb\nc"

Also note at the moment the mail server might not immediately pickup values changed via zmprov, since it is talking to LDAP directly, and the mail server is caching, so you either need to restart the mail server (tomcat) or wait 15 minutes or so.

A future version of zmprov will use SOAP to the mail server, and update its cache.

roland

[tron]

\n did not seem to work. It took \n literally and did not turn them into newlines.

Originally Posted by schemers

You should be able to quote the newlines via \n:

zmprov ma some@account.domain zimbraMailSieveScript "a\nb\nc"

Also note at the moment the mail server might not immediately pickup values changed via zmprov, since it is talking to LDAP directly, and the mail server is caching, so you either need to restart the mail server (tomcat) or wait 15 minutes or so.

A future version of zmprov will use SOAP to the mail server, and update its cache.

roland

[schemers]

It worked for me, but that was against my latest build, so maybe that change when in after M1.

roland