Re: Doveadm Backup (other) issues

Hello,

Sorry for the reply delay, I had to worry about something else …

Here is my *doveconf -n*:

   # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf
   # Pigeonhole version 0.5.4 ()
   # OS: Linux 4.19.0-6-amd64 x86_64 Debian 10.4
   # Hostname:/[my-host-name]/
   auth_debug = yes
   auth_debug_passwords = yes
   auth_verbose = yes
   auth_verbose_passwords = yes
   imapc_features = rfc822.size fetch-headers
   imapc_host =/[remote-imap-host]/
   imapc_password = # hidden, use -P to show it
   imapc_user =/[my-remote-user-name]/@/[with-domain]/
   log_path = /var/log/dovecot.log
   mail_debug = yes
   mail_location = mbox:~/mail:INBOX=/var/mail/%u
   mail_prefetch_count = 20
   mail_privileged_group = mail
   namespace compat1 {
     alias_for =
     hidden = yes
     list = no
     location =
     prefix = mail/
     separator = /
   }
   namespace compat2 {
     alias_for =
     hidden = yes
     list = no
     location =
     prefix = Mail/
     separator = /
   }
   namespace inbox {
     inbox = yes
     location =
     mailbox "&AMk-l&AOk-ments envoy&AOk-s" {
       special_use = \Sent
     }
     mailbox "&AMk-l&AOk-ments supprim&AOk-s" {
       special_use = \Trash
     }
     mailbox Brouillons {
       special_use = \Drafts
     }
     mailbox "Courrier ind&AOk-sirable" {
       special_use = \Junk
     }
     prefix =
   }
   passdb {
     driver = pam
   }
   passdb {
     args = scheme=MD5-CRYPT username_format=%u /etc/dovecot/users
     driver = passwd-file
   }
   plugin {
     sieve =file:~/sieve;active=~/.dovecot.sieve
   }
   
   ssl_ca = </etc/letsencrypt/live/default/chain.pem
   ssl_cert = </etc/letsencrypt/live/default/cert.pem
   ssl_dh = # hidden, use -P to show it
   ssl_key = # hidden, use -P to show it
   userdb {
     driver = passwd
   }
   userdb {
     args = username_format=%u /etc/dovecot/users
     driver = passwd-file
   }

There is certainly something trivial there, but I'm not very used to advanced usage of Dovecot.

Regards,

Gingko

Le 08/06/2020 à 10:32, Sami Ketola a écrit :

...

On 7. Jun 2020, at 16.13, Gingko mailto:ldiff001@gingko.ovh> wrote:

Hello,

I also have issues using Dovecot Backup.

I am trying to Backup (or possibly Sync - one way) a single user IMAP account from a remote server, unknown type, to my own server.

For that purpose, I defined the following parameters :

imapc_host = <host name> imapc_user =<user name> imapc_password = <password> imapc_features = rfc822.size

(<user name> has format: name@example.com mailto:name@example.com, and <host name> is the name of the imap remote server that I use for getting mails)

… and then I issued the following command:

doveadm backup -R -u mailto:name@example.com> imapc:

... but doing this, I get the following answer:

dsync(<user name>): Info: imapc(<host name>:143): Connected to <host IP address>:143 (local 192.168.1.2:52940) dsync(<user name>): Error: Failed to initialize user: namespace configuration error: Namespace mail/ can't have alias_for= to a different storage (different root dirs)

How can I solve this?

If there is something not matching between servers, I may eventually change configuration on my side, but I think I would first have to know which feature(s) I have to know from the remote server in order to create the matching one on my server.

Is there a way to list all relevant data coming from the remote server?

Also:

Doing this, is it necessary that the source user name be the same as the destination user name? Is it possible to backup an IMAP account to a user account having a completely different name?

Nope. Source and destination usernames can be different. Please post your doveconf -n as this is probably an error on your local config.

Sami