Hi Jeremy,,
Thanks for the update. My actual issue is something different.
I am in the process of integrating ctasd [commtouch advanced securtiy
daemon] with exim for checking/preventing outbound spams. What ctasd does
is that it compares a outgoing mail with the mails confirmed as
spam/suspect/bulk in commtouch's datacenter, and sends back to exim. I have
a perl script that does the above said part. I am calling the particular
script using transport_filter in remote_smtp transport [driver = smtp].
--------------
remote_smtp:
driver = smtp
...
...
transport_filter = /usr/local/exim_sa_client.pl --senderip
$sender_host_address --mailfrom $sender_address
--------------
Infact the transport_filter does the required task and adds the following
headers to the mail:
--------------
X-Spam-Checker-Version: spamc_ctasd client on
localost
X-Spam-Level: **********
X-Spam-Flag: YES
X-Spam-Status: Yes, score=100.0 required=5.0 tests=SpamClass_Confirmed,
VirusClass_Unknown autolearn=disabled
version=1.0.0
X-CTCH-PVer: 0000001
X-CTCH-Spam: Confirmed
X-CTCH-VOD: Unknown
X-CTCH-Flags: 32
X-CTCH-RefID:
str=0001.0A020208.50F6861E.0022,ss=4,re=0.000,recu=0.000,reip=0.000,cl=4,cld=1,fgs=32
X-CTCH-Score: 0.000
X-CTCH-ScoreCust: 0.000
X-CTCH-Rules:
X-CTCH-SenderID: xxx@???
X-CTCH-SenderID-Flags: 8192
X-CTCH-SenderID-TotalMessages: 1
X-CTCH-SenderID-TotalSpam: 1
X-CTCH-SenderID-TotalSuspected: 0
X-CTCH-SenderID-TotalConfirmed: 1
X-CTCH-SenderID-TotalBulk: 0
X-CTCH-SenderID-TotalVirus: 0
X-CTCH-SenderID-TotalRecipients: 0
--------------
Now I need to check if the header contains say X-CTCH-Spam: Confirmed,
just reject the mail. Is there any way I can achieve this? I tried adding a
if..endif check in exim system_filter, but no luck, as I suppose
system_filter is checked in ACL section.
Is it possible to perform '/usr/local/exim_sa_client.pl --senderip
$sender_host_address --mailfrom $sender_address' in ACL? Or any other
method to accomplish this?
Please assist. I am stuck at this :(
Thanks in advance.
Regards,
Soumya
On Thu, Jan 17, 2013 at 2:32 AM, Jeremy Harris <jgh@???> wrote:
> On 01/16/2013 11:06 AM, soumya tr wrote:
>
>> Please let me know if its possible to reject mails at transport
>> 'remote_smtp', by checking some header?
>>
>
> Exim isn't really designed that way. ACLs are the best place
> to determine rejection, as the SMTP conversation is still open
> (MAIL, RCPT or DATA acl; probably the latter in your case).
> Routers are possible, but less good.
>
> --
> Jeremy
>
>
>
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