Hi Duane, I don't see the point. SpamAssasin has really nothing to do with the filters from IMail .
============================================ Am Mittwoch, 16. November 2005 um 15:00 schrieben Sie: > On Tuesday, November 15, 2005 at 10:17:22 PM, [EMAIL PROTECTED] confabulated: >> Hi, >> I'm trying to find a rule to filter Mail containing a image only. >> The rule to filter an empty body would be: B!~(\w|\S). >> This would not work if an image is in the body. the image tag "<img >> src=3Dcid:355c628c0d1c32416ab32a0657415cc7>" is a text. >> I'm not sure, If the parser excludes Image from text. So far i >> Remember IMail parses everything in the body, e.g. images, pdf's, doc's or >> whatever we have. >> I think, the bulid in regex are not good enough to find a rule "If >> a mail contains a image AND not other text". >> Any idea? >> Thanks > Don't know if this helps or not. I haven't investigated too much yet. > I've seen a few but not that many to cause alarm yet. This was just > posted this morning on the users list for SpamAssassin: > ----- > <QUESTION> > I have setup SA 3.1 under FC4, which is working quite well. However, > one type of message that still gets through is a series of mails that are > made up of no text other than a varying subject, then a picture, which is > black text on white, which looks exactly like an ordinary email. Obviously > SA can't read the message since it is an image, but is there a way to make a > rule that blocks a mail where there is an image only, no text? > </QUESTION> > <RESPONSE> > Yes, this is a problem, but a simple rule like you describe is overly > broad; What happens when my wife sends our children snapshots from with her > cell phone (which causes exactly this case - though the pictures are in > color). > Maybe other service providers add some text, and I know she *could* attach a > message, but seldom does (she just gives it a title like "Nice statue", > "Pretty bird" or similar short, almost meaningless "Subject:" lines). > Also, you obviously haven't seen the multi-color text on colored > background spams with thin (one pixel) randomly angled lines going through > the text to confuse the commercial services who do already attempt character > recognition in images. Maybe some enterprising individual will try to > write a plug-in for SA to do this (still, it would be computationally > expensive for sites getting many images). > Once again, digests, net tests (DSN, RCVD, etc.) and header rules > are your best defense for now (also, AFAICT, ".png" files appear mostly > in spam, JPEG and TIFF files are sent by most camera phones, so maybe a rule > on image type would help some, but spammers would quickly adapt, and nearly > all image formats have legitimate uses - let's not argue about ".gif"s here). > </RESPONSE> > -- > "This message is made of 100% recycled electrons." > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ ============================================ -- Mit freundlichen Grüssen -------------------------------------------- Merlin Consulting Martin Schaible Bahnhofstrasse 27 CH-8702 Zollikon Phone: +41 44 391 30 00 Fax: +41 44 391 32 49 Mail: mailto:[EMAIL PROTECTED] URL: http://www.merlinconsulting.ch Support: http://support.merlinconsulting.ch GPS: N47 20.235 E8 34.226 -------------------------------------------- News - Neue Produkte: .:. NOD32 Antivirus System .:. BlueDragon .:. Kiwi Syslog Monitor .:. Paessler GmbH .:. Sawmill Loganalyzer .:. SmarterTools -------------------------------------------- To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
