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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I was aware of
@codinghorror's classic on perils of sending mail, but only recently discovered@litmusapp, which is brilliant btw. -
and with respect to IP reputation, various Amazon SES endpoints may or may not show up blacklists, which is especially fun to debug
End of conversation
New conversation -
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(My first real software job was doing anti-spam research at a tech incubator.)
Thanks. Twitter will use this to make your timeline better. UndoUndo
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