cyrus + postfix + lmtpd questions

Diego Ventrice fordcarnut at
Wed Mar 17 19:56:56 EDT 2010

I just want to get this straight. Please, someone clarify his to me.
Consider Cyrus and Postifx runing on different servers and having to
communicate with each other through lmtp.

Here´s the line we all know from cyrus.conf that is gonna bring lmtp
listening on tcp:

lmtp          cmd="/usr/local/cyrus/bin/lmtpd" listen="lmtp" prefork=1

Is that enough on the cyrus side ?

posfix's :

mailbox_transport = inet:[]:24

On some previous reply someone wrote about adding the following to
relay_domains :     lmtp:unix:public/lmtp    # for a local LMTP socket     inet:[]:24        # for a remote LMTP socket

and then to extend transport_maps:


Cant figure out why this is necesary.

And last but not least. How postfix authenticates in anyway so Cyrus ????

Thanks for all who answered and for the patience

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