Andy Durant wrote:
Hello all,
I am using dspam and postfix to relay mail for exchange and so far everything
is going smoothly but for some minor issues. We have several clients in china
who mail us in Chinese only and all of them get flagged as spam.. Since my
quarantine is not delivering mail when released (another issue) I have to
manually send the email through with altered headers to reflect the correct
sender. However; the Chinese characters get converted to asci characters like
this ÔÓʼþ·¢¼þÈËÃû×Ö: pol and of course no one can read it any longer.
Is there a way to have specific incoming domains bypass dspam’ s spam
checking altogether. I had though configuring main.cf in postfix with
the dspam trigger last would allow that to happen but its not. Dspam is
still picking up and scanning everything. Relevant postfix portion below:
smtpd_sender_restrictions =
hash:/etc/postfix/good_domains
hash:/etc/postfix/client_access
hash:/etc/postfix/banned_domains
reject_rbl_client zen.spamhaus.org
smtpd_recipient_restrictions =
permit_mynetworks
reject_unauth_destination
check_recipient_access pcre:/etc/postfix/dspam_incoming
permit
**Andy Durant**
Network Administrator
*Addressograph Bartizan*
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
_http:// <http://www.imprinters.com/>_www.imprinters.com
<http://www.imprinters.com/>
(519) 893-4510 x 145
(519) 748-9843 Fax
Hi Andy,
It would be more helpful if you would include a postconf -n and the
contents of any relevent maps.... like dspam_incoming.
Also be sure that you don't have dspam setup as a global filter in
master.cf.
One thing I have noticed is that the following is not correct syntax.
You list out the map, but you don't say what to do with it...like
check_sender_access.
smtpd_sender_restrictions =
hash:/etc/postfix/good_domains
hash:/etc/postfix/client_access
hash:/etc/postfix/banned_domains
reject_rbl_client zen.spamhaus.org
Honestly, if I were you, I would simply put all of your UCE checks into
the smtpd_recipient_restrictions like the following... as postfix
defaults to delaying any rejections until the rcpt to phase of the smtp
transaction anyway. It's not that it really does anything different in
the end, but it will keeps things a bit cleaner and more easy to
understand and allow for more information to be shown in the logs.
smtpd_client_restrictions =
smtpd_helo_restrictions =
smtpd_sender_restrictions =
smtpd_recipient_restrictions =
permit_mynetworks,
reject_unauth_destination,
check_sender_access hash:/etc/postfix/good_domains,
check_sender_access hash:/etc/postfix/client_access,
check_sender_access hash:/etc/postfix/banned_domains,
reject_rbl_client zen.spamhaus.org,
check_recipient_access pcre:/etc/postfix/dspam_incoming,
permit
Here is an example of what your dspam_incoming file could look like to
have some domains bypassing the filters while the rest get filtered as
expected. Keep in mind that pcre maps look for first match and exit
with whatever result you list as the second argument in the match string.
contents of dspam_incoming.
/[EMAIL PROTECTED]/ OK
/[EMAIL PROTECTED]/ OK
/./ FILTER dspam:dspam
or
/./ FILTER dspam:[127.0.0.1]:10026 (depending on how you have dspam running)
Hope this helps..
Todd Florman
