Tim wrote: > And that leads to one of my pet hates about "junk > mail" buttons on ordinary mail clients used by clueless people. They'll > hit the junk button on mail they don't want to see, but isn't actually > junk (such as a message list that they've subscribed to, but can't arsed > to unsub themselves), and report that mail as being spam to a third > party. And suddenly, your actually not-spam mail, is being blacklisted. This does have unexpected benefits, though. Firstly, everyone knows that this is happening. No-one is blocking at an ISP level on a single “this is spam” click: they’re looking for higher than usual levels of reporting. Secondly, some ISPs are turning “this is spam” into unsubscribes for reliable senders (and they have the data to be able to tell: they look at how long they’ve been sending from those IP addresses, how much, what the historic complaint rates have been, and so on). This does confirm that the account is active, but it also tells the ISP that any more mail is unwanted: if the senders ignore these unsubscribes, then the ISP knows that at least part of their output is spam. So senders who Do The Right Thing in processing unsubscribes don’t get harmed, and not having working unsubscribes gets you blocked. Thirdly, large ISPs (for example, Yahoo), are starting to use “engagement” as a measure in their email filtering. Depending on the user agent (for example, web mail), the ISPs may be able to tell for a large proportion of their userbase which emails are being opened, which ones are having links clicked, and take a reasonable guess at how long people are spending reading an email. Senders with better engagement are the ones that the users really want to hear from. They might get into “Priority Inboxes”, and are the ones that can tolerate a higher “this is spam rate”. So there’s another incentive for senders to send email that the recipients will want to receive. For example, under the old system, a marketing department might have wanted to send out daily fliers during December. Now they might judge that three or four emails with a higher concentration of good offers will get better engagement, and hence better delivery. See, for example, http://www.mediapost.com/publications/article/179994/summer-2012-when-engagement-began-to-matter.html#ixzz22oUAyZUo James. -- E-mail: james@ | Legacy (adj): an uncomplimentary computer-industry aprilcottage.co.uk | epithet that means 'it works'. | -- Anthony DeBoer -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org