[Dovecot] LDA quota rejection

Noel Butler noel.butler at ausics.net
Sun Sep 22 06:16:59 EEST 2013

Dovecot should never generate a message to send to sender, this is
classified as backscatter.
Your MTA should get the quota answer from dovecot when the sender
connects, and tries to mail and fail then, it is the MTA (maillog file)
you need to look at to see why your MTA is not tempfailing the

On Sat, 2013-09-21 at 10:51 +0200, Davide wrote:

> Hi to all, i have dovecot 2.2.5 and i have implemented lda rejection 
> through quota full
> this is my dovecot conf
> protocol lda {
>    mail_fsync = optimized
>    auth_socket_path = /usr/local/var/run/dovecot/auth-userdb
>    deliver_log_format = msgid=<%f>-<%s>-%m: %$
>    hostname = mail.cgilfe.it
>    info_log_path = /var/log/dovecot/dovecot-deliver.log
>    log_path = /var/log/dovecot/dovecot-deliver.log
>    mail_plugin_dir = /usr/local/lib/dovecot
>    mail_plugins = $mail_plugins mail_log sieve
>    postmaster_address = postmaster at mail.cgilfe.it
>    rejection_subject = Rifiutato: %s
>    rejection_reason = Messaggio a <%t> automaticamente rifiutato:%n%r
>    submission_host = 192.16X.XXX.XX0
> }
> If user over quota receive a messagge internally all is ok but if the 
> user receive a mail from external domains nothing to the sender is sentback.
> Thanks in advance to all for possible help.

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