The story so far: I have a 2.2.12 aggregate that I am upgrading to 2.3.16. My previous problem with saslauthd was fixed by installing cyrus-sasl-plain and cyrus-sasl-gssapi. I have moved one of my test accounts from the 2.2.12 back-end server to the 2.3.16 backend server using xfer. In the process I had neglected to set: hashimapspool: true No problem, I'll just move the maiboxes back. This failed with: service imap pid nnn in BUSY state: terminated abnormally on the 2.3.16 server. So, I shutdown cyrus, added the hashimapspool option, moved the mail files and metadata, and started cyrus. I can access the mailbox, read it, etc. No problem. But, when I try to move it back to the 2.2.12 back-end the same error message. Is this a cyrus version incompatibility? That is, are the moves one-way, at least when using xfer? I found some references to a 2.2.14 error: http://github.com/brong/cyrus-imapd/commit/ec1bfcf6a1db9c86cbf55b9c25d7eb044dbbe51b#diff-0 Is this the same problem, and if so has this been patched in 2.3.16? Mike -- Michael D. Sofka sofkam@xxxxxxx C&MT Sr. Systems Programmer, Email, HPC, TeX, Epistemology Rensselaer Polytechnic Institute, Troy, NY. http://www.rpi.edu/~sofkam/ ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/