Mail Transport Error Postfix Upd | Delivery Temporarily Suspended Unknown

sudo postconf -M dovecot/unix sudo postconf -M dovecot/unix | awk '$8="/usr/libexec/dovecot/dovecot-lda"; print $0' | sudo postconf -M -

For MySQL/PostgreSQL maps:

a cryptic signal that your mail server has encountered a structural mismatch between its instructions and its available tools sudo postconf -M dovecot/unix sudo postconf -M dovecot/unix