With Dovecot-2.2.22 and enabled virtual plugin I get following error messages:
Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0x819f0) [0x7f12330bf9f0] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x81adc) [0x7f12330bfadc] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f123306833d] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(virtual_backend_box_close+0x178) [0x7f12320599f8] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0x9f94) [0x7f1232059f94] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0x9fe9) [0x7f1232059fe9] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_close+0x1a) [0x7f12333825da] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_free+0x13) [0x7f1233382663] -> dovecot/imap() [0x41870f] -> dovecot/imap() [0x423ce4] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handle_timeouts+0xda) [0x7f12330d28aa] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x9c) [0x7f12330d3cbc] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7f12330d2a65] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f12330d2c08] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f123306da23] -> dovecot/imap(main+0x2d7) [0x40c3c7] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f1232cb4b45] -> dovecot/imap() [0x40c530]
I test it with this configuration on Debian Jessie 64-bit:
# dovecot.conf mail_plugins = $mail_plugins acl quota zlib virtual
namespace { prefix = virtual/ separator = / location = virtual:~/Maildir/virtual }
# ~/Maildir/virtual/unseen/dovecot-virtual INBOX unseen
Mit freundlichen Grüßen
Ralf Zimmermann Senior Security Engineer State Certified Engineer
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