On 8/31/06 10:02 AM, "W B Hacker" <[EMAIL PROTECTED]> wrote:
> We do have to 'brownlist', for example, NetSol, who send from IP's with no DNS > entry, but even there, it is only for traffic from one domain.tld, and fewer > than a dozen usernames we allow in that domain.tld. The rest can whistle. Our little nonameok.txt file (which prevents generation of the headers we create that SpamAssassin gives points for) presently has 51 lines. It probably doesn't have that many *needed* entries, as I add entries as needed but haven't recently done a pass through it to remove IPs that now DO have reverse name service. Just today, my message from the Washington State Lottery mailing list wound up in my Spam folder because of the points added for no name: the state outsourced (or changed the outsourcing) of the list to a company whose mail server has no reverse DNS (really none, as opposed to reverse that doesn't please Exim). So nonameok.txt grew by one entry today. We learned early on (which for us means mid-1990s) that we couldn't afford to simply block for no name: The state runs DNS for all the school districts in the state except Seattle, and didn't know how to do it right (and still messes it up now and then, although they seem now to *intend* to have it right). Teachers really don't like it if they can't send email from school to spouses at home--and no one at the schools involved can fix the problem. We spent a LOT of support time trying to educate admins about DNS in the mid to late 1990s, and gave up (we couldn't afford to continue). -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
