[Dovecot] Mail delivery to subfolders via address extension, and prefered lda method

[Micha Krause]

Hi,

I want to deliver mails directly to subfolders, based on address extensions.

Example:

Emails sent to: micha+test at example.com

Should be stored into user micha, folder INBOX.test

I was able to reproduce this with exim and dovecot-lda:

   command = /usr/lib/dovecot/dovecot-lda -e -m 
"INBOX.${substr_1:$local_part_suffix}"


But I was wondering if I could do this within dovecot, which would 
enable me to use
LMTP instead of dovecot-lda.


Which brings me to my second question:

Which method is "better" for dovecot, lda or LMTP?



Micha Krause