Doveadm Backup (other) issues

[Gingko]

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 <ldiff001 at gingko.ovh 
>> <mailto:ldiff001 at 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 at example.com <mailto:name at 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 <user name, formatname at example.com 
>> <mailto:name at 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
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