This problem can happen on Cyrus 1.6.24. It is very unlikely, and use (or
non-use) of LMTP won't affect it. In order for the bug to be triggered,
imapd needs to die at just the wrong time or the machine needs to crash
during an IMAP COPY command.
Your lmtp problems (described in previous mes
John Holman (Jan 15) 'unsafe copy' describes how messages can be
corrupted following any situation which results in message files being
left on the filesystem having been removed from the index files. If
these files were hardlinked to other copies on the filesystem these
copies will be overwri
