[Dovecot] Small issue with "submission host"

Hi everyone,

I'm facing a small issue with the lda/lmtp "submission_host" feature in dovecot 2.0.14.

When sending mail to MTA (in case of sieve filter forwarding for example), dovecot pass a RCPT TO command just after the EHLO. He's missing the MAIL FROM command. Therefore, my MTA show me a warning like this : "improper command pipelining after EHLO".

How can i solve that ?

Regards,

Raphael