dovecot - Aug 2022 - Sieve rule for whitelisting domains after spam processing

Hello,

 

My mail server has a global Sieve rule defined in sieve_before to file
messages classified as spam by spamassassin into the Spam folder:

 

require ["regex", "fileinto", "imap4flags"];

 

if allof (header :regex "X-Spam-Status" "^Yes") {

  fileinto "Spam";

}

 

This works great, except I'd like the ability to whitelist certain senders
or domains whose emails end up in Spam, usually due to a misconfigured SPF
DNS TXT record or something like that.  I use Roundcube as my Webmail
client, so the easiest way to whitelist would be to create a rule for each
domain directly in Roundcube using its built-in Sieve integration to move
legitimate messages out of the Spam folder.  I already have several rules
set up to flag and sort non-spam messages, and they're working fine.  I
therefore tried adding a simple rule to move Spam into the Inbox:

 

# rule:[Not Spam]

if allof (header :contains "from" "user at good-domain.com")

{

        fileinto "INBOX";

}

 

However, the above rule does not work as I expected.  When I receive an
email from good-domain.com that's classified as Spam by spamassassin, the
global rule sends it to the Spam folder and it is not re-filed into the
Inbox.  The second rule doesn't seem to do anything.  I'm probably doing
something simple wrong, but I can't figure out what (I'm a Sieve newb). 
Any
suggestions please?

 

Thanks,

Nick

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On 2022-08-10 06:09, Nicolae Iuoras wrote:
> Hello,
> 
> My mail server has a global Sieve rule defined in sieve_before to file
> messages classified as spam by spamassassin into the Spam folder:
> 
> require ["regex", "fileinto", "imap4flags"];
> 
> if allof (header :regex "X-Spam-Status" "^Yes") {
> 
>   fileinto "Spam";
> 
> }
> 
> This works great, except I'd like the ability to whitelist certain
> senders or domains whose emails end up in Spam, usually due to a
> misconfigured SPF DNS TXT record or something like that.  I use
> Roundcube as my Webmail client, so the easiest way to whitelist would
> be to create a rule for each domain directly in Roundcube using its
> built-in Sieve integration to move legitimate messages out of the Spam
> folder.  I already have several rules set up to flag and sort non-spam
> messages, and they're working fine.  I therefore tried adding a simple
> rule to move Spam into the Inbox:
> 
> # rule:[Not Spam]
> 
> if allof (header :contains "from" "user at
good-domain.com")
> 
> {
> 
>         fileinto "INBOX";
> 
> }
> 
> However, the above rule does not work as I expected.  When I receive
> an email from good-domain.com that's classified as Spam by
> spamassassin, the global rule sends it to the Spam folder and it is
> not re-filed into the Inbox.  The second rule doesn't seem to do
> anything.  I'm probably doing something simple wrong, but I can't
> figure out what (I'm a Sieve newb).  Any suggestions please?
> 
> Thanks,
> 
> Nick
Hi Nick,

Can you post your full global sieve and RC sieve script?

It could be due to the order of if statements or the structure having to 
be in if and elseif instead of if else and use anyof instead of allof 
and if email is by default is going to INBOX, then just call command 
keep; in either at the top of if statement if the order of specific 
domain exclusion matters.

Otherwise in each if condition try to use stop; command.

Zakaria.