TIL that major anti-spam services lower the "is spam" score if you have an unsubscribe link in the email body. Even if it's commented out.

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Replying to @kennwhite
The amount of craziness with heuristics in that field is one of the major reasons why everything is window-dressing for IP rep.
2 replies 0 retweets 2 likes
Replying to @patio11 @kennwhite
(My first real software job was doing anti-spam research at a tech incubator.)
10:53 AM - 16 Jun 2016
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