Per the documentation we should be using *|UNSUB:url|* not |UNSUB:url|. I also confirmed that the template that predates the Boulder data/ version used *|UNSUB:https://mandrillapp.com/unsub|*.
I also moved the "WARNING" onto the preceding line. The unsubscribe URL is quite long and gnarly once its been filed in and the warning could be missed in a MUA that doesn't wrap lines well.
This resolves#2523
We received some community forum feedback that the certificate expiration email's unsubscribe link didn't provide enough context to know what would happen if you clicked it. Combined with #1396 I agree that we should make it clear that there won't be a subsequent confirmation of intent if you click unsubscribe and you can't resubscribe yourself.
Note: there is an outstanding operations ticket to switch to using the Boulder data/ templates in staging/production. Until that happens this PR won't take effect post-merge/deployment.
This is some text for the renewal reminder e-mail to explain more about the circumstances under which the e-mail is sent (a very common topic of complaint and confusion on the Community Forum).
Daniel McCarney
schoen
Jacob Hoffman-Andrews