[Dovecot] delivering with maildrop

[Radim Kolar]

I presume he wants to filter first with maildir, then actually deliver 
using the dovecot delivery agent?
yes
> In answer to the OP: read the maildropex man pages, but you have
> several options, eg:
>
Yes found that dovecot-lda -m will do it nicely.

echo "mail message Test " | /usr/local/libexec/dovecot/dovecot-lda -m 
dovecot

just user agents are not able to display message with 0 headers. That 
confused me.