[Declude.JunkMail] Avoiding False Positives?
I have numerous clients that report the problems of their client e-mails failing spam tests. They ask me why their clients fail -and what they can suggest to avoid failing some of the filters. I've heard some things like using all CAPS or backgrounds can hit some filters. My understanding of this is minimal. I know a lot has to do with what filters are being used -and how the administrator setup the domain. Is there any advise to give to legit e-mailers to help out in reducing their chances of getting caught in the spam filters? Regards, Brent attachment: winmail.dat
Re: [Declude.JunkMail] Avoiding False Positives?
I have numerous clients that report the problems of their client e-mails failing spam tests. They ask me why their clients fail -and what they can suggest to avoid failing some of the filters. ... Is there any advise to give to legit e-mailers to help out in reducing their chances of getting caught in the spam filters? It all depends on what spam tests they are failing. For example, if they are failing SPAMCOP, people reported them as sending spam. If they are failing the BADHEADERS test, then their mail client is not RFC-compliant. So the first step is to check the X-Spam-Tests-Failed: header to see which spam tests the E-mail failed, and work from there. -Scott --- Declude JunkMail: The advanced anti-spam solution for IMail mailservers since 2000. Declude Virus: Ultra reliable virus detection and the leader in mailserver vulnerability detection. Find out what you've been missing: Ask for a free 30-day evaluation. --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type unsubscribe Declude.JunkMail. The archives can be found at http://www.mail-archive.com.
Re: [Declude.JunkMail] Avoiding False Positives?
Brent, Something that I'm doing for my users is the use of a pass phrase. I've given all of my users a pass phrase (combination of letters and numbers, similar to a pin code) to give to their contacts who send email to them. Using Spamchk I've created a negative weight of 1000 whenever the pass phrase is found within the body of an email which will erase any all weight that has been assigned to an incoming email and thus saving it from ever being considered spam. Greg Brent Brashear wrote: I have numerous clients that report the problems of their client e-mails failing spam tests. They ask me why their clients fail -and what they can suggest to avoid failing some of the filters. I've heard some things like using all CAPS or backgrounds can hit some filters. My understanding of this is minimal. I know a lot has to do with what filters are being used -and how the administrator setup the domain. Is there any advise to give to legit e-mailers to help out in reducing their chances of getting caught in the spam filters? Regards, Brent --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type unsubscribe Declude.JunkMail. The archives can be found at http://www.mail-archive.com.
RE: [Declude.JunkMail] Avoiding False Positives?
I appreciate the feedback. Where do you get information about the tests (like SPAMCOP and BADHEADERS (how do you get RFC-compliant?)? What are the most popular tests to use? My understanding is that you can't just throw EVERY test out there into your filter search (especially if you're an ISP with 100's (or more) e-mail domains), because that will slow down the server. Thanks again for the feedback... -Brent -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of R. Scott Perry Sent: Wednesday, June 23, 2004 8:31 AM To: [EMAIL PROTECTED] Subject: Re: [Declude.JunkMail] Avoiding False Positives? I have numerous clients that report the problems of their client e-mails failing spam tests. They ask me why their clients fail -and what they can suggest to avoid failing some of the filters. ... Is there any advise to give to legit e-mailers to help out in reducing their chances of getting caught in the spam filters? It all depends on what spam tests they are failing. For example, if they are failing SPAMCOP, people reported them as sending spam. If they are failing the BADHEADERS test, then their mail client is not RFC-compliant. So the first step is to check the X-Spam-Tests-Failed: header to see which spam tests the E-mail failed, and work from there. -Scott --- Declude JunkMail: The advanced anti-spam solution for IMail mailservers since 2000. Declude Virus: Ultra reliable virus detection and the leader in mailserver vulnerability detection. Find out what you've been missing: Ask for a free 30-day evaluation. --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type unsubscribe Declude.JunkMail. The archives can be found at http://www.mail-archive.com. --- [This E-mail scanned for viruses by Web Force Systems AntiVirus] --- [This E-mail scanned for viruses by Web Force Systems AntiVirus] --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type unsubscribe Declude.JunkMail. The archives can be found at http://www.mail-archive.com.
RE: [Declude.JunkMail] Avoiding False Positives?
Where do you get information about the tests (like SPAMCOP and BADHEADERS (how do you get RFC-compliant?)? Descriptions of the DNS-based spam tests can be found at http://www.declude.com/junkmail/support/ip4r.htm ; descriptions of the others can be found in the manual. To become RFC-compliant, the vendor of an Internet product must follow the rules of the Internet (the RFCs). -Scott --- Declude JunkMail: The advanced anti-spam solution for IMail mailservers since 2000. Declude Virus: Ultra reliable virus detection and the leader in mailserver vulnerability detection. Find out what you've been missing: Ask for a free 30-day evaluation. --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type unsubscribe Declude.JunkMail. The archives can be found at http://www.mail-archive.com.
