>> Date: Sat, 23 Dec 2000 11:20:08 -0600
>> From: Don Brown <[EMAIL PROTECTED]>
>> you can safely delete based upon RBL, DUL, RSS, OSDUL, OSSRC & OSSOFT. <<
That matches our experience with RBL, DUL, OSDUL, OSSRC & OSSOFT.
(Although, the OS* servers have been down for weeks and are not triggering
anything anymore.) Unfortunately, all these are a very minor percentage of
all junk mail received.
RSS triggers false positives for us on a daily basis.
(We wrote a little MS Access database applet to extract from/to/subject and
the RBL warning message from a Declude.log file. That allowed us to sort
the database by different detection methods and quickly identify any "good"
mail.)
>> we found ORBS to be too militant. They were blocking Earthlink <<
Yep, same here. We even tried ORBSSRV and ORBSMAN - and still got false
positives.
>> We do not use heuristics, because of too many false positives. <<
I works pretty well in detecting spam - unfortunately, it flags most mailing
lists. So we just flag headers. This way the client (e.g. Outlook), can
FIRST check the from/to address for known lists BEFORE checking the spam
headers.
>> Ditto for MailFrom, although Scott is working on it. <<
I thought there was a change in 1.09 that increased DNS reliability? Plus,
I tracked down two instances, where the problem appeared to have been bad
DNS data that stuck around until the next TTL expiry.
Best Regards
Andy Schmidt
H&M Systems Software, Inc.
600 East Crescent Avenue
Suite 203
Upper Saddle River, NJ 07458-1846
Phone: +1 201 934-3414 x20 (Business)
Fax: +1 201 934-9206
http://www.hm-software.com/
Please visit http://www.ipswitch.com/support/mailing-lists.html
to be removed from this list.
An Archive of this list is available at:
http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
