> On 16 Oct 2018, at 23:06, Luis E. Muñoz via mailop <mailop@mailop.org> wrote: > > > > On 16 Oct 2018, at 12:42, Brandon Long wrote: > >> It is pretty common these days for spam systems to sometimes visit links in >> the email message to help determine the spamminess or phishiness or just >> plain badness of messages. > > I can see the value of the datapoint. That said, if the automated filter > visits a confirmation link then it would be breaking COI. How are ESPs > discerning between those visits and the ones originated by the recipient > actually clicking on the confirmation link?
Lots of different ways. Proximity to delivery, user agent, IP address are all things successfully used to distinguish automated from non-automated clicks. >> It's one of the reasons for the newer >> list-unsubscribe-post header in rfc 8058 (as mentioned in the abstract). > > Yes, I'm aware. However, the context of the conversations on this topic that > I remember were centered around making the link "machine actionable", in the > sense that automatic unsubscribe would not need to jump through hoops but > rather, straight unsubscribe. This could keep the traditional unsubscribe > behavior of presenting a form to collect feedback on the unsubscribe reason. That wasn’t the whole issue, as I remember the discussions. > To me this is very different from plainly GETting a link in an email. > > Hopefully this behavior is restricted to images and collateral, not actual > links... but once the line is broken, it's only a matter of time I guess. It hasn’t been for a very long time. This is not new behavior at all. https://wordtothewise.com/2013/07/barracuda-filters-clicking-all-links/ <https://wordtothewise.com/2013/07/barracuda-filters-clicking-all-links/> was not the first time the behavior was seen, just the first time I publicly documented it. (Note: others may have documented it before me, but that link was easy for me to find) laura -- Having an Email Crisis? We can help! 800 823-9674 Laura Atkins Word to the Wise la...@wordtothewise.com (650) 437-0741 Email Delivery Blog: https://wordtothewise.com/blog
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