xyz@abc, nullgroupname:;, group: p@q, r@s; }
addresses: ${addresses:local-part@dom.ain <local-part@dom.ain>}
-escape: ${escape:B7·F2ò}
+escape: ${escape:B7·F2ò}
+excape8bit: ${escape8bit:undisturbed text\ttab\nnewline\ttab\\backslash \176tilde\177DEL\200\x81.}
+
eval: ${eval:1+1}
eval: ${eval:1+2*3}
eval: ${eval:(1+2)*3}