[Dovecot] dovecot + exim + verify recipient / reject bad recipient at SMTP time

hello,

I'm quite new to dovecot. My instalation is working good Debian Etch - exim: 4.63-17 - dovecot: 1.0.rc15

I'm using virtual user setup, with LDA delivery method. There is no database backend at this time.

Is there any way to configure exim to reject non-existing user /asking dovecot lda/ at SMTP time. The standard exim configuration in ACL section do not work: --- cut --- require message = e-mail address is not valid ($local_part@$domain / $recipient_verify_failure) domains = +virtual_domains verify = recipient --- cut ---

Please, have any work working example ? This setup work good witch cyrus-imap and LMTP.

best regards
	Peter Hudec