Unsubscribe header

[erjoalgo]

Is it possible to add a custom header or an "Unsubscribe" header? Some email deliverability tools suggest having this for best results and to reduce the risk of being marked as spam:

(-1 points) There is no List-Unsubscribe header or Unsubscribe Link.

[liquidz]

@erjoalgo Hi,
You can specify any header as follows:

(with-open [conn (tarayo/connect {:host "localhost" :port 25})]
  (tarayo/send! conn {:from "alice@example.com"
                      :to "bob@example.com"
                      :subject "hello"
                      :body "world"
                      "List-Unsubscribe-Post" "List-Unsubscribe=One-Click"
                      "List-Unsubscribe" "<https://example.com/unsubscribe>"}))

[erjoalgo]

I see, Thank you. It would be good to have this as an explicit keyword argument like :extra-headers to make things more clear.