courier to dovecot migration

[Aki Tuomi]

On 29.9.2019 23.38, tovises via dovecot wrote:
> I have a quite old home server based on Debian 6.x packages using courier
> imap server (exim4, fetchmail, courier, apache2, squirrelmail) to keep my
> and my wife emails (about 25G).
> I want renew my server to Debian 10 (buster) and got a recommendation to
> use dovecot instead of courier. For this purpose I'm using a different PC
> as a sandbox. Debian 10 currently offer dovecot version 2.3.4.1
> Installation was "peaceful" but stuck with the migration. I have choose
> migration using dsync, from Wiki I was choose this command:
>
> For per-user user/passwords use:
>
> doveadm -o imapc_user=foo -o pop3c_user=foo -o imapc_password=bar -o
> pop3c_password=bar backup -R -u user at domain imapc:
>
> (foo and bar placed real username and password)
>
> But I get error:
> doveadm(tovis at nusi.tovis-lab.mydomain.org): Error: User doesn't exist
>
> Strongly I have no real domain, I'm using "freedns". "nusi" is the local
> name of my old server, "tovis-lab" is conjunction with "mydomain.org"
> choose from freedns. I was trying short as "nusi" which is in /etc/hosts
> file even ip address but the same result. 143 and 943 ports are working
> only inside the firewall (OpenWrt).
> I was checked using telnet courier on the "remote" box and dovecot on the
> localhost. I was able to login.
>
> What should I use as "user at domain" in this situation?
>
>   tovis
>
>
>
Hi!

-u parameter should be your *local* username, @domain is optional.

Aki