From: Henry <henry@wi...>
Mails from MAILER-DAEMON
I encountered a problem in using sid-filter. When the
mails were sent by MAILER-DAEMON, i.e. <>, in the
mlfi_envfrom call, "user" and "domain" will be NULL so
that it always returns a TEMPFAIL, where no mail
bounces can be received. I guess empty "mail from"
should be allowed here, am I missing something critical?