I've set up dovecot on a testbed server. Each time a user ('myusername') connects via imap, I get the following info in mail.log: dovecot: imap(myusername): fcntl(F_NOTIFY) failed: Invalid argument I'm using these config settings in dovecot.conf in an attempt to avoid fcntl lock_method = dotlock mbox_read_locks = dotlock mbox_write_locks = dotlock I've looked through the archives but haven't seen this particular message, so I am a bit lost. I've tried fiddling with the NOTIFY defines in config.h but these don't seem to make a difference, if they compile at all. I'm on lib6 on this Debian Woody (kernel 2.2.25) box. I don't know how realistic it would be to get up to a latest glibc, if this is where the problem exists. Can anyone point me in the right direction or provide some insight? Cheers, -Michael Blinn -- If this is my day of harvest, in what fields have I sowed the seed, and in what unremembered seasons? - Kahlil Gibran CONFIDENTIALITY NOTICE: This message, and any attachments that may accompany it, contain information that is intended for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential, or otherwise exempt from disclosure under applicable law. If the recipient of this message is not the intended recipient, any disclosure, copying, or other use of this communication or any of the information, which it contains is unauthorized and prohibited. If you have received this message in error, please notify the original sender by return mail and delete this message, along with any attachments, from your computer. Thank you.