From: {{ .From }}
To: {{ .To }}
Subject: {{ .Subject }}
Date: {{ .Date.Format "Mon, 2 Jan 2006 15:04:05 -0700" }}
Message-ID: <{{ .UUID }}@{{ .Identifier }}>
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="{{ .Boundary }}"

--{{ .Boundary }}
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

{{ .Body.PlainText }}
{{- if not (eq .Body.HTML "") }}
--{{ .Boundary }}
Content-Type: text/html; charset="utf-8"

{{ .Body.HTML }}
{{- end }}
--{{ .Boundary }}--