It could be the focus inbox effect. If the user ignores your mail long enough then they don’t even see it
> On Jun 13, 2018, at 8:48 PM, Michael Rathbun <m...@honet.com> wrote: > > On Wed, 13 Jun 2018 10:13:35 -0600, Paul Kincaid-Smith <p...@emailgrades.com> > wrote: > >> if Microsoft's filters were aggressively moving heaps of *wanted* email out >> of >> the inbox, I'd expect Outlook's read rates to be lower, but my metrics show >> that read rates at Outlook are often in line with read rates at Gmail and >> Yahoo! > > ... > >> (I'm probably measuring read rates differently than you. I use IMAP's >> "message read" flag, not an open tracking pixel or click-tracking link.) > > I confess that I am not at all sure what you are doing, as we would normally > not have IMAP access to a recipient's mailbox. > > Based on the usual crude tracking pixel and click-tracking links, we often see > open rates at hotmail/msn/etc at under half those seen elsewhere. > > Thinking about performance objectives (having been a spam analyst for the > Office 365 platform for a couple of years, ending just when the consolidation > with the freemail service began), reflecting upon the fact that non-spam email > can be several orders of magnitude more expensive to process and place in the > inbox than spam, my thought is that > > 1. It can be extremely economical to consult the recipient's local rules > before even beginning to filter an incoming message; if it's subject to the > local safe-sender list, mark it as safe and terminate all filtering. At least > a 10,000:1 resource saving. If it would be nabbed by the recipient's > blocked-sender list, mark it as spam and likewise send it on its way. > > 2. Given the great desirability of completely eliminating the filter process, > devise as many ways as possible to populate each recipient's safe and banned > lists, regardless whether they would like you to do that. > > mdr > -- > "There will be more spam." > -- Paul Vixie > > > _______________________________________________ > 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=02%7C01%7Cvgabriel%40rutgers.edu%7Cb604c2fda5bb4542ac8008d5d15e4129%7Cb92d2b234d35447093ff69aca6632ffe%7C1%7C1%7C636645125106140487&sdata=TeU79z84xyNGtMT1O%2Fdbkdw97SnGvRRQsfxeSggYQV0%3D&reserved=0 _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
