[Mailmunge] MTA Macros

[postfix at ptld.com]

Im trying to read $ctx->sendmail_macro('tls_version') in 
filter_recipient().
Postfix has a setting milter_rcpt_macros where you can tell it to pass 
addition macros.

I tried main.cf:milter_rcpt_macros = i {rcpt_addr} {rcpt_host} 
{rcpt_mailer} {tls_version}
But im still getting UNDEF in filter_recipient().

Will mailmunge read all macros sent and put them in 
$ctx->sendmail_macro(), or is mailmunge only looking for expected macros 
and ignores extras sent by the MTA?