doveadm mailbox list fails with : Error: Namespace '': Mail storage autodetection failed with home=/home/<username>

Solution Verified - Updated -

Issue

  • An error occurs when attempting to list all the mailboxes (folders) available to a specific user on a dovecot mail server:

    For example: (Here username is considered as testuser)

# doveadm mailbox list -u testuser
doveadm(108899): Error: Namespace '': Mail storage autodetection failed with home=/home/testuser

Environment

  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

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