Date: Fri, 26 May 2006 10:43:32 +1000 From: Mikhail Goriachev <mikhailg@webanoide.org> To: Adrian Pavone <wingot@amcom.com.au> Cc: freebsd-questions@freebsd.org Subject: Re: Spam problem! Message-ID: <44764F34.5050906@webanoide.org> In-Reply-To: <4475D6BE.7050600@amcom.com.au> References: <20060525145312.50581.qmail@web53406.mail.yahoo.com> <6.0.0.22.2.20060525104327.02694300@mail.computinginnovations.com> <4475D6BE.7050600@amcom.com.au>
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Adrian Pavone wrote: > Derek Ragona wrote: >> There are many ways to combat spam. One of the easiest is to use >> mailscanner in the ports. >> >> You can configure mailscanner to compare senders against known lists >> of SPAMers, in addition to it's own rules. >> >> -Derek >> >> >> At 09:53 AM 5/25/2006, Olga Zenkova wrote: >>> I use sendmail 8.13.3 and gather full log of its work. >>> I see such strings in it: >>> >>> <<< RCPT TO: user1@domain.com >>> >>> 250 2.1.5 <user1&domain.com>... Recipient ok >>> <<< RCPT TO: user2@domain.com >>> >>> 250 2.1.5 <user2&domain.com>... Recipient ok >>> <<< DATA >>> <<< To: user3@domain.com >>> >>> where user1, user2 - users names >>> domain.com - domain name >>> >>> After that user1 and user2 get spam letters to their >>> mailboxes with field "To: user3" in it. There are no >>> user1 or user2 in this field. Is it possible to cut >>> off these letters? Especially it is difficult to >>> explain for user1 and user2 why they got letters >>> addressed not for them. >>> >>> Thanks! >>> Olga Zenkova >>> >>> >>> >>> __________________________________________________ >>> Do You Yahoo!? >>> Tired of spam? Yahoo! Mail has the best spam protection around >>> http://mail.yahoo.com >>> _______________________________________________ >>> freebsd-questions@freebsd.org mailing list >>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >>> To unsubscribe, send any mail to >>> "freebsd-questions-unsubscribe@freebsd.org" >>> >>> -- >>> This message has been scanned for viruses and >>> dangerous content by MailScanner, and is >>> believed to be clean. >>> MailScanner thanks transtec Computers for their support. >> > Ohh, this reminds me of my ISP tech support days. Having to explain to > illiterates what a BCC is ... > > Yeah, I think even sendmail has a mail filter available if you want to > configure it. There are many anti-spam methods available at the server. > I recommend finding one with greylisting built in I had to get rid off greylisting (even though it sounds wicked). It took me a few months to realise that some legitimate mail was getting lost due to senders' weird configuration on SMTP level. Also sometimes I was getting very long delays and it was unacceptable by the users. I use a mix of sendmail, spamass-milter and spamassassin. It quietly accepts spam and delivers it marked as such but never bounces. It does a great job, can't complain, but 1% manages to get through from time to time. Also, once in awhile legitimate mail gets marked and this is where whitelisting comes in handy. Cheers, Mikhail. -- Mikhail Goriachev Webanoide Telephone: +61 (0)3 62252501 Mobile Phone: +61 (0)4 38255158 E-Mail: mikhailg@webanoide.org Web: http://www.webanoide.org PGP Key ID: 0x4E148A3B PGP Key Fingerprint: D96B 7C14 79A5 8824 B99D 9562 F50E 2F5D 4E14 8A3B
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