{{- $From := (index .From 0) }}{{ $To := .To -}}
{{- range $idx, $elm := .To -}}
	{{- if eq (exec `grep -q 'sr.ht$' && printf '1'` $elm.Address) "1"}}{{$From = `"Robert Günzler" <r@gnzler.io>`}}{{end -}}

	{{- if eq (exec `grep -q '@gnzler.*$' && printf '1'` $elm.Address) "1" -}}
		{{- $From = (printf `%s` $elm) -}}
		{{- $To = (drop $To $idx) -}}
	{{- end -}}
{{- end -}}

From: {{$From}}
To: {{range $To}}{{.}},{{end}}
X-Mailer: aerc {{version}}

Hi {{(index .OriginalFrom 0).Name}},