Re: Problem migrating some users from old to new dovecot server with doveadm backup

On 25/11/2025 18:40 EET Javier Miguel Rodríguez via dovecot <dovecot@dovecot.org> wrote:

Hello

    This is my setup:

• Old server: RHEL 7 x64, dovecot 2.3.13 from dovecot RPM repo
• New Server: RHEL 9 x64,  dovecot-2.3.16-15.el9.x86_64 (rhel rpm)

    I am migrating several thousand mailboxes with doveadm backup, >99% worked, but 3 of them fail:

Hi!

How are you migrating, since you didn't actually provide the used command line.

Also the line before Nov 13 06:00:33 myserver dovecot: doveadm: Error: Raw backtrace: would have been probably useful, instead of the backtrace alone.

Aki