wasn't implemented for things like email on the server side.
also changed text mail variant's footers to all use {{ .footer }} like I
should have before.
Variables are surrounded by {}, and initial (default) templates are
generated on demand from the plaintext version of emails. The custom
emails are intended to only be used if the user actually changes them,
as they lose the features of the default ones, such as tables.
Harvey Tindall