postfix architecture and dovecot LMTP

[Marek Kozlowski]

:-)

I know the basic postfix operational scheme:

http://www.postfix.org/OVERVIEW.html



smtp      inet  n       -       n       -       -       smtpd
   -o content_filter=spamassassin

spamassassin unix -     n       n       -       -       pipe






My question is:

I have a generic spamassassin instance that marks messages recognized as spam, `/etc/postfix/master.cf' : flags=R user=spamd argv=/usr/bin/vendor_perl/spamc -e /usr/bin/sendmail -oi -f ${sender} ${recipient} The goal I'd like to achieve is: for mail marked as spam and intended for local delivery only(!) after all postfix processing automagically put it to some `Junk' folder in users' maildirs rather then to `new/'. I'm using dovecot for IMAP/POP. I've read that since dovecot 2.0 I may use dovecot as an LMTP and implement desired solution by adding sieve/pigeon classifier to dovecot LMTP. It perfectly(?) integrates with postfix. Dovecot documentation suggests (I really hate documentation "by example") that dovecot LMTP is responsible for just putting mail into mailboxes of local users. It adds dovector LMTP to `mailbox_transport' which seems exactly what I'm looking for (https://wiki2.dovecot.org/HowTo/PostfixDovecotLMTP). "It suggests". LMTP in general does AFAIK much more. I cannot find much about it in postfix documentation. The scheme mentioned above (http://www.postfix.org/OVERVIEW.html) shows the following arrow:

lmtp(8)         ->   Network

So I cannot position dovecot LMTP on that scheme. Does it do the same as: http://www.postfix.org/local.8.html ?

Best regards,
Marek

--
Dr Eng. Marek Kozłowski
Senior Lecturer
Unix and Network Administrator
Warsaw University of Technology
Faculty of Mathematics and Information Sciences
ul. Koszykowa 75,
00-662 Warszawa
POLAND
tel.: +48 601 827 225

Maybe different terms are used for both documentations? I'm really confused; may I ask some little clarification?

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