Spam Filter ISP Forums : Blocking foreign character sets? https://www.logsat.com/spamfilter/forums/ Sun, 08 Mar 2026 03:45:04 +0000 Thu, 03 Nov 2005 04:53:59 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.04 360 https://www.logsat.com/spamfilter/forums/RSS_post_feed.asp?TID=3790 <![CDATA[Spam Filter ISP Forums]]> https://www.logsat.com/spamfilter/forums/forum_images/web_wiz_forums.png https://www.logsat.com/spamfilter/forums/ <![CDATA[Blocking foreign character sets? : If you have a separate server...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6722&title=blocking-foreign-character-sets#6722 Author: Marco
Subject: 3790
Posted: 03 November 2005 at 4:53am

If you have a separate server for your outgoing mails i would suggest installing a firewall on, or in front of, the receiving mailserver that blocks all but internal network ip's.

]]> Thu, 03 Nov 2005 04:53:59 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6722&title=blocking-foreign-character-sets#6722 <![CDATA[Blocking foreign character sets? : We are facing the same problem! Does...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6717&title=blocking-foreign-character-sets#6717 Author: Guests
Subject: 3790
Posted: 02 November 2005 at 11:23am

We are facing the same problem!

Does anybody know how to accept mail only from certain IPs(SFs) with sendmail? Maby using procmail?

/Web123

]]> Wed, 02 Nov 2005 11:23:05 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6717&title=blocking-foreign-character-sets#6717 <![CDATA[Blocking foreign character sets? : Just another thing to think about....]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6716&title=blocking-foreign-character-sets#6716 Author: WebGuyz
Subject: 3790
Posted: 02 November 2005 at 11:09am

Just another thing to think about.

We had an instance where certain spam was getting through to our users and we did not understand why SF was not stopping it. We then realized the spammers were ignoring the MX records for our domains and sending directly to the mail server itself. SF was setup with the IP of the MX records. We kept the mailservers port 25 open for our customers to user to authenticate and send outgoing emails, but the spammers were blowing right by SF by ignoring the 'rules' and were NOT using MX records to send but going straight to the A record. We now have rules on the mailserver to prevent this, but it was a mystery for a while and something to keep in mind when you get some persistent spam traffic that makes no sense.

]]> Wed, 02 Nov 2005 11:09:01 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6716&title=blocking-foreign-character-sets#6716 <![CDATA[Blocking foreign character sets? : mail sent, hope you find something...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6712&title=blocking-foreign-character-sets#6712 Author: Marco
Subject: 3790
Posted: 02 November 2005 at 8:00am

mail sent, hope you find something suspicious.

Kind regards,

 

Marco

ps: running SPF build 487, on winNT 4 SP6a server, qdb is running on msAcess DB, using the jet engine



Edited by Marco]]> Wed, 02 Nov 2005 08:00:25 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6712&title=blocking-foreign-character-sets#6712 <![CDATA[Blocking foreign character sets? : Marco, Actually that&#039;s...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6710&title=blocking-foreign-character-sets#6710 Author: LogSat
Subject: 3790
Posted: 01 November 2005 at 5:18pm

Marco,

Actually that's news to us. If you can send us the full text contentsof one of those messages from the tblMsgs table in the database, we'lltry to reproduce it. If you have problems extracting the data, pleaselet us know what database platform you're using so we can help you withthe process.
]]> Tue, 01 Nov 2005 17:18:07 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6710&title=blocking-foreign-character-sets#6710 <![CDATA[Blocking foreign character sets? : Some of the foreign charset mails...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6709&title=blocking-foreign-character-sets#6709 Author: Marco
Subject: 3790
Posted: 01 November 2005 at 4:22am

Some of the foreign charset mails are beeing blocked by MAPS, and placed in qdb.

i want to check them out for keyword filtering, honeypot etc, but when i dblclick them to investigate i get:

11/01/05 10:12:57:580 -- Exception occurred during DBGridQuarantineDblClick: Read Timeout

All other qdb items work fine, those don't, Roberto, are you aware of this?

I don't want to send the mails through to the adressee, because then the sender gets whitelisted, and i have to dig through the whitelist to remove it.

In cases like this i could use a 'deliver once' button in the qdb gui.

regardless, the error msg i get isnt supposed to happen.

At the moment i have 3 of the foreign sets mails in the db, and all behave the same.

 

]]> Tue, 01 Nov 2005 04:22:41 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6709&title=blocking-foreign-character-sets#6709 <![CDATA[Blocking foreign character sets? : Not yet, but it&#039;s very close...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6625&title=blocking-foreign-character-sets#6625 Author: LogSat
Subject: 3790
Posted: 06 October 2005 at 10:11pm

Not yet, but it's very close to the top of the wish list


]]> Thu, 06 Oct 2005 22:11:08 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6625&title=blocking-foreign-character-sets#6625 <![CDATA[Blocking foreign character sets? : Has filtering by character set...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6623&title=blocking-foreign-character-sets#6623 Author: mikek
Subject: 3790
Posted: 06 October 2005 at 2:54am

Has filtering by character set been implemented yet?]]> Thu, 06 Oct 2005 02:54:25 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=6623&title=blocking-foreign-character-sets#6623 <![CDATA[Blocking foreign character sets? : No unfortunately the emails come...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=3902&title=blocking-foreign-character-sets#3902 Author: Guests
Subject: 3790
Posted: 01 July 2004 at 12:28pm

No unfortunately the emails come in from different IP's so there really isn't one that I can monitor]]> Thu, 01 Jul 2004 12:28:00 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=3902&title=blocking-foreign-character-sets#3902 <![CDATA[Blocking foreign character sets? : Alan, I&#039;ve seen that &#034;conversion&#034;...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=3899&title=blocking-foreign-character-sets#3899 Author: LogSat
Subject: 3790
Posted: 01 July 2004 at 12:15am

Alan,

I've seen that "conversion" on emails received by both Exchange 5.5 and Exchange 2003, both without running SpamFilter. Have you tried the debugging procedure I described in a previous posting to see if you're able to capture the original source?

Roberto F.
LogSat Software

]]> Thu, 01 Jul 2004 00:15:00 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3790&PID=3899&title=blocking-foreign-character-sets#3899