Il 01/12/2015 16:19, Timo Sirainen ha scritto:
On 01 Dec 2015, at 17:10, Antonello Cioffi <[email protected]> 
wrote:
Hi

I'm using postfix+dovecot (2.2.18).

The problem is that dovecot silently discard message when user has its own 
mailbox full without sending rejection message to the sender.

Here a sample log:

Dec  1 14:54:23 posta2 postfix/smtp[21478]: B315111C00B: 
to=<[email protected]>, relay=192.168.241.110[192.168.241.110]:25, 
delay=0.4, delays=0.2/0/0/0.2, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 
C27BF1244DD)
Dec  1 14:54:23 posta2 dovecot: lda(antonen): Error: sieve: 
msgid=<[email protected]>: failed to store into mailbox 
'INBOX': Quota exceeded (mailbox for user is full)
Dec  1 14:54:23 posta2 dovecot: lda(antonen): sieve: Execution of script 
/usr/local/etc/dovecot/sieve/default.sieve failed with unsuccessful implicit 
keep
Dec  1 14:54:23 posta2 dovecot: lda(antonen): 
msgid=<[email protected]>: rejected: Quota exceeded (mailbox 
for user is full)
Dec  1 14:54:23 posta2 postfix/pipe[21020]: 111FB11C00B: 
to=<[email protected]>, relay=dovecot, delay=0.14, 
delays=0.05/0.01/0/0.09, dsn=2.0.0, status=sent (delivered via dovecot service)
Dovecot should have sent a bounce message at that time. I guess that doesn't 
work for some reason. By default Dovecot uses:

sendmail_path = /usr/sbin/sendmail

Also you can instead have it send it via SMTP by setting submission_host 
setting. And finally if you give -e parameter to dovecot-lda, it won't send a 
bounce itself but instead will exit with 77 causing Postfix to send the bounce.

Hi

I don't set -e parameter.

Now I set "submission_host = mail.uniparthenope.it" to use smtp instead of sendmail_path and the result is now:

Dec 2 08:58:49 posta2 dovecot: lda(antonen): msgid=<[email protected]>: Permanently failed to send rejection: smtp(mail.uniparthenope.it): DATA failed: 550 5.7.1 no third-party DSNs

Regards

--
Dott. Antonello Cioffi
Ufficio Servizi Informatici
Università degli Studi di Napoli Parthenope
Tel. 081/5475292 - Fax. 081/5475180

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