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[EMAIL PROTECTED] writes: > On Wed, 18 Jan 2006, Brian Grossman wrote: > > > On Wed, 18 Jan 2006 10:52:48 -0800 > > [EMAIL PROTECTED] (Justin Mason) wrote: > > > > > Andrew Pam writes: > > > > Message-IDs MUST be globally unique as defined in the RFCs, so the > > > > chance of collision is zero unless someone has very broken (or > > > > malicious) email software. > > > > > > A good 80% of email, according to recent statistics, is indeed broken > > > and/or malicious -- spam, malware, etc. I've seen many spams with > > > duplicate or missing Message-IDs. > > > > Is anyone here blocking messages without message-ids? How's it working > > for you? > > It's working great for me. But I haven't checked in a long time just how > well. Last I checked (over a year ago) it stopped about 40% of my spam. > > > Get many false positives? > > No complaints ;-) But then I'm not a big network - just me really. for what it's worth, I *have* seen nonspam mail doing this; typically transactional mail/legit bulk newsletters. A quick grep of my legit-bulk samples folder gives me a couple of newsletters from Vonage, May 2004, a "welcome to blah mailing list" message from lists.sourceforge.net, and a welcome message for a mailing list at http://giftfile.org/ . Try it out -- egrep for Message-I[dD]: <[EMAIL PROTECTED]> e.g. in my case it's Message-I[dD]: <[EMAIL PROTECTED]> - --j. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) Comment: Exmh CVS iD8DBQFDzs7tMJF5cimLx9ARAviWAKCrc5MxfPUGm8BcyMZy54YyfCUQHwCfTDh2 F4VMCDzuiEg6E/6hYq8hTN8= =WOup -----END PGP SIGNATURE-----
