Just to chime in for Office365, we either reject at the edge, or deliver to Junk/Quarantine.
If there is an attack on our infrastructure in progress, and we can specifically identify distinctives of the attack, we may craft a DROP rule for that traffic, once we're certain of the bogus nature of it, but that happens on the order of maybe once every two or three months, and the rule is torn out as soon as the attack has subsided. Otherwise, Office365 never drops mail, unless the user specifically chooses an option (delete high confidence spam) to do so, which we don't recommend. Aloha, Michael. -- Michael J Wise | Microsoft | Spam Analysis | "Your Spam Specimen Has Been Processed." | Got the Junk Mail Reporting Tool ? -----Original Message----- From: mailop [mailto:mailop-boun...@mailop.org] On Behalf Of Suresh Ramasubramanian Sent: Monday, June 13, 2016 10:15 AM To: Brandon Long <bl...@google.com> Cc: mailop <mailop@mailop.org>; Hugo Slabbert <hslabb...@stargate.ca> Subject: Re: [mailop] Microsoft/Hotmail discards mails That's where a human postmaster team comes in handy along with sufficient automation (self removals, automated relists, automated upgrades to covering cidr blocks, a template driven ticketing system that lets you handle multiple tickets with a single set of actions for reply / closure .. Give the automation you actually won't need as many people as you think (two full time people for 40++ million users was fun till about eight years back) --srs > On 13-Jun-2016, at 9:36 PM, Brandon Long via mailop <mailop@mailop.org> wrote: > > OTOH, our SMTP time rejections have their own issues, false positives are a > lot more visible and harder to deal with (user's can't mark an smtp time > rejection as "not spam"). Most of the questions/complaints on mailop about > Gmail are due to our SMTP time rejections. _______________________________________________ mailop mailing list mailop@mailop.org https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fchilli.nosignal.org%2fcgi-bin%2fmailman%2flistinfo%2fmailop&data=01%7c01%7cmichael.wise%40microsoft.com%7cb38463fb725c450836c808d393aed6d5%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=cd3FiliSb4BCvmPKlHhR9b3%2fIfcwXxLM%2bronn06eY1M%3d _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
