I think the issue is here: ADD https://github.com/krallin/tini/releases/download/v0.19.0/tini /sbin/tini # buildkit tini has arm64 (and others) version. So it should be easy to make the container work with arm. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20220101/fa52dc49/attachment.htm>