Le 2010-08-05 09:40, Andrew D a écrit :
> G'Day,
>
> Alexandre Gagné wrote:
>> Hi !
>>
>> I have some user that would prefer to rely on their mail client for
>> spam filtering instead of the server-side anti-spam (spamassassin).
>>
>> I use MySQL to manage my users, so I added a "enable_antispam" in the
>> table which can be set to "YES" or "NO".
>>
>> Then I have defined a variable in Exim config, 'ENABLE_ANTISPAM',
>> which do a mysql lookup and get the 'enable_antispam' value. So
>> 'ENABLE_ANTISPAM' should return 'YES' or 'NO'.
>>
>> I added a condition to my ACLs that have something to do with spam,
>> and I'm not sure if I done it right. I did a lot a googling and read
>> exim documentation, but I haven't found anything that make me confident
>> I am doing things right.
>>
>> Below, the parts in my 'exim.conf' that are concerned. Does it seems
>> to be right ? I added my "condition" before those that were already
>> there. The idea being that if "ENABLE_ANTISPAM" return "NO", I don't
>> wan't to do the spam-check.
>>
>
>
> The issue with this is that the scanning is done at the DATA acl,
> which means variables like $local_part and $domain aren't available,
> due to there possibly being multiple recipients in different domains.
>
> It also means that if an email comes in to multiple recipients and you
> set the ENABLE_ANTISPAM variable to no before hand, none of those
> recipients would have their email scanned.
>
> What you could do is defer (during the rcpt to phase) on those ppl,
> that don't want spam scanning, when in a mutiple rcpt email (defer the
> rest if it is the first rcpt), getting around this issue.
>
> Cheers I hope that helps.
> cya
> Andrew
>
Thanks for everyone answer ! I removed the quotes, and revert the
condition (check if NO instead of YES). So that the condition looks like
this:
condition = ${if eq {ENABLE_ANTISPAM}{NO}{no}{yes}}
I have noticed after adding some logging to a MySQL table (for reject
mails) that the "local_part" and "domain" are only defined in RCPT acl,
not in DATA and MAIL. That was part of my problem too.
Am I right to assume that the variable "recipient" in DATA acl will only
contain multiple email address if the email is sent through the same
SMTP server ? My server need authentication to send emails, so I don't
check SPAM/Greylisting on those emails since it is a trusted user. I
sent a multiple-recipient emails to a few address destinated to the same
domain from GMail and Hotmail, and they were going through as "single
recipient" email. Is there cases where it wouldn't be ?
Thanks a lot for the help !
AlexG
