> SquirrelMail 1.4.6 > PHP 4.4.1 > UWIMAPD (IMAP4rev1 2003.339p-cpanel) > Apache 1.3.34 > CentOS 4.2 i686 > Our webserver runs as nobody. > > Many of my recipients don't receive my messages, sent from SquirrelMail, > because my messages end up in their spam folders or are filtered out by > their ISP or employer as spam. Why does this happen so often with > SquirrelMail-sent messages? > > I know about the "bug" in one version of Spam Assassin, that mistakently > assigns messages sent by SquirrelMail with a higher spam score than is > warranted. > > I also have some recipients who find that my messages end up flagged in > the subject line with "Bayesian Filter detected spam". With some such > recipients, an initial message makes it through cleanly, but if I reply to > their message then it will be flagged "Bayesian Filter detected spam". > > With some other recipients it's unclear what spam filtering is in place, > but my messages always end up in their spam folder. > > Yes, users should check their spam folders. But, some users aren't clued > in enough to remember to do that. From a non-informed user perspective, it > would be better if we SM administrators could do something to minimize the > chances that our mail is flagged or blocked as spam. > > What causes so many SquirrelMail-sent messages to be flagged as spam? Is > there anything we can do about it?
Bayes is trained spam detection engine. If users misuse it or train it incorrectly.... If users send emails from broadband addresses, some spam filtering engines might check ip address in first Received header and assign extra points when address is listed in DUL RBL. If you have server on DSL connection, filters can check second received header. SquirrelMail 1.4.6 allows to hide user's ip address. Two different options are available. One option is in 4. General options section and another is in SMTP/Sendmail options. If you use sendmail (http://www.sendmail.org) and SquirrelMail is configured to use /usr/sbin/sendmail, sendmail can add extra headers about untrusted senders. These headers can trigger spam filters too. Are you sure that X-AntiAbuse headers are added to all email users? If they are present only in SquirrelMail emails, headers might trigger some filtering engines too. -- Tomas ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 -- squirrelmail-users mailing list Posting Guidelines: http://www.squirrelmail.org/wiki/MailingListPostingGuidelines List Address: squirrelmail-users@lists.sourceforge.net List Archives: http://news.gmane.org/thread.php?group=gmane.mail.squirrelmail.user List Archives: http://sourceforge.net/mailarchive/forum.php?forum_id=2995 List Info: https://lists.sourceforge.net/lists/listinfo/squirrelmail-users
