Hello,
I have seen that smail use "file locking" to lock a user mailbox while manipulating it (it creates a /var/spool/mail/<user>.lock file), like I suppose most others mail programs in debian. But a least the mail program from the mailx package do locking by calls to flock. I am not sure, if in some (rare) cases, this could lead to mailbox corruption or loss of messages. So what is the proper way to lock a user mailbox ? By the way, the tkmail program seems unable to lock it, it tries to create a "<user>.lock" file but has not enough permission to do it. Loic Prylli P.S: here the version of the package I use: mailx-8.5.5-1 tkmail-4.0beta7-1 smail-3.1.29.1-23 -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED]