[Dovecot] dovecot deliver mail bounce problem

[mouss]

Dhaval Thakar a écrit :
> Hi list,
> 
> I am using dovecot deliver for the local mail delivery with qmail.
> this is working fine.
> 
> but when mail is sent to invalid user, it gets bounced back with error
> "I'm not going to try again; this message has been in the queue too
> long." rather "no mailbox here by that name"
> 


if there is "no mailbox here by that name", then you should reject at
smtp time (in your MTA: postfix, sendmail, whatever).

do not bounce after accepting mail. Search for "backscatter" to learn more.


> I could find proper solution,
> kindly guide to resolve it.
> 
> /var/log/maillog
> Oct 24 23:03:27 backup dovecot: auth(default): master in: USER  1      
> d at arch.xyz.com       service=deliver
> Oct 24 23:03:27 backup dovecot: auth(default): vpopmail(d at arch.xyz.com):
> lookup user=d domain=arch.xyz.com
> Oct 24 23:03:27 backup dovecot: auth(default): vpopmail(d at arch.xyz.com):
> unknown user
> Oct 24 23:03:27 backup dovecot: auth(default): prefetch(d at arch.xyz.com):
> passdb didn't return userdb entries, trying the next userdb
> Oct 24 23:03:27 backup dovecot: auth(default): master out: NOTFOUND     1
> 
> no logs in /var/log/dovecot-deliver.log
> 
> following is the configuration
> .qmail-default
> |/var/qmail/bin/preline -f /usr/local/libexec/dovecot/deliver -n -e -d
> $EXT@$USER
> 
> 
> 
> dovecot -n
> # 1.1.5: /etc/dovecot/dovecot.conf
> protocols: imap
> ssl_disable: yes
> disable_plaintext_auth: no
> login_dir: /usr/local/var/run/dovecot/login
> login_executable: /usr/local/libexec/dovecot/imap-login
> login_greeting: mail ready.
> mail_plugins: quota imap_quota trash
> imap_client_workarounds: delay-newmail outlook-idle
> namespace:
>  type: private
>  prefix: INBOX.
>  inbox: yes
>  list: yes
>  subscriptions: yes
> auth default:
>  mechanisms: plain login
>  verbose: yes
>  debug: yes
>  debug_passwords: yes
>  passdb:
>    driver: checkpassword
>    args: /home/vpopmail/bin/vchkpw
>  userdb:
>    driver: vpopmail
>  userdb:
>    driver: prefetch
>  socket:
>    type: listen
>    master:
>      path: /var/run/dovecot/auth-master
>      mode: 384
>      user: vpopmail
>      group: vchkpw
> plugin:
>  quota: maildir
>  quota_rule: Trash:ignore
>