Imapsync is perfectly capable of doing that. You need to have an working account on the dovecot server and the password from both the gmail account and dovecot account.

Then use this command:

imapsync
--host1 imap.gmail.com --user1 test@gmail.com --password1 mypasswd
--host2 new.mailserver.com --user2 test@domain.com --password2 mypasswd

Google may also help:

https://wiki.zimbra.com/wiki/Guide_to_imapsync

https://www.howtoforge.com/how-to-migrate-mailboxes-between-imap-servers-wit...

http://www.linuxbrigade.com/migrate-mail-one-server-another-imapsync/

On 04/08/2017 12:11 PM, Adrian Minta wrote:

Use imapsync: https://imapsync.lamiral.info/

On 04/08/2017 12:02 PM, Mik J wrote:

...

Hello,

I would like to host my mails and I would like to retrieve my existing mailbox content from my ISP

My ISP

I don't have root access on the server The server seem to use Dovecot according to the banner.

My machine

I have root access on the server I use Dovecot 2.2.21 I use Maildir

I read this page multiple times but it's not clear to me https://wiki2.dovecot.org/Migration/Dsync

"Set up configuration for the IMAP server you wish to migrate from" Is it my ISP's server or my server ? In which configuration file should I do this ?

The same for this option dsync_features = empty-header-workaroundwhere is it supposed to be configured ?

My most important case is quite "simple": the mailboxes (there are 2 or 3) I want to migrate don't exist on my machine, so there is no such problems as merge existing mails. Will this migration use imap and retrieve the content of the mails ? Will it use port 143 or 993 ? I'll use the backup option

I have another case which there are mails on both servers. So I would like to keep existing mails on my machine. I'll use the sync -1 option ?

Thank you

-- Best regards, Adrian Minta