Hello, I am actually testing dovecot fts search, using doveadm fts lookup. I run this command: doveadm fts lookup -u andre subject "Test" And this generate this error: doveadm(andre): Panic: file mail-storage.c: line 1694 (mailbox_get_open_status): assertion failed: (box->opened) doveadm(andre): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x95e92) [0x7fa7ac9e8e92] -> /usr/lib/dovecot/libdovecot.so.0(+0x95f19) [0x7fa7ac9e8f19] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fa7ac97ea91] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_get_open_status+0x68) [0x7fa7accb5f68] -> /usr/lib/dovecot/modules/lib21_fts_solr_plugin.so(+0x494d) [0x7fa7ab90394d] -> /usr/lib/dovecot/modules/lib20_fts_plugin.so(fts_backend_lookup+0x4d) [0x7fa7abf6861d] -> /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_plugin.so(+0x2821) [0x7fa7aabff821] -> doveadm(+0x28fcd) [0x5617545e8fcd] -> doveadm(+0x29ba8) [0x5617545e9ba8] -> doveadm(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x21c) [0x5617545ea9ec] -> doveadm(doveadm_cmd_run_ver2+0x555) [0x5617545f9d25] -> doveadm(doveadm_cmd_try_run_ver2+0x37) [0x5617545f9d77] -> doveadm(main+0x1da) [0x5617545d9afa] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7fa7ac5d42e1] -> doveadm(_start+0x2a) [0x5617545d9eda] Do I have to do anything special to test the dovecot fts index with doveadm lookup? I have not found the documentation on the dovecot web site. Thanks for your advices. -- Andr? Rodier. https://github.com/progmaticltd/homebox