Re: [Dspam-user] SIEVE like filtering logic, does this sound reasonable?

[Chad M S. <ch...@ba...>]

On May 16, 2012, at 5:10 PM, Steve Fatula wrote:

> ----- Original Message -----
> 
>> From: Chad M Stewart <ch...@ba...>
>> To: dsp...@li...
>> Cc: 
>> Sent: Wednesday, May 16, 2012 2:38 PM
>> Subject: [Dspam-user] SIEVE like filtering logic, does this sound reasonable?
>> 
>> 
>> I want to implement a sieve type filter, after dspam has processed the 
>> messages.  In other words, if dspam marks the message as spam and has a high 
>> degree of confidence, then silently discard the message.  Unfortunately Postfix 
>> does not have a native SIEVE implementation.  I'm playing with ProxSMTPD and 
>> a perl script I've written.  The filter will become opt-in, so not all users 
>> are forced into it.  
> 
> If you are using dovecot to read your mail, you can use the dovecot lda to deliver the mail from postfix instead of the postfix lda, and, dovecot does have a Sieve implementation. That's what I use. It also provides some advantages iver using postfix to deliver the mail.
> 
> http://wiki2.dovecot.org/Tools/DovecotLDA
> 
> Retraining while using dovecot can then be done with the dovecot antispam plugin which allows you to simply drag messages to or from the spam folder. Extremely simple.
> 
> So, just another thought.
> 


Agreed.  In my case this is a service I offer to clients.  So I'm a relay setup.  Eventually I'll look into setting up a quarantine but in my mind now that has lots of requirements, like a virtual hosted mailbox setup (which I'll probably use dovecot for), but then I'd also have to deal with things like authentication and that could get ugly quickly.  Someday, but for now I want a SIEVE like capability.

Mentally I think I've figured out how to turn this into a postfix content filter that is part of a restriction class, users will be able to opt-in via a database flag, which will set the appropriate transport map in postfix.

Its been years since I've had to write programs to massage email messages, I've missed it.  :)


-Chad