Yup, I get a log message to the console when I send an email.
Try stracing doorknob: "strace -v -s 256 /usr/sbin/doorknob -fs" in your run script. Check that the messages it's sending to its stdout are properly terminated with a newline or null character. (Messages sent to the console will appear even if they're not terminated with a newline; but s6-log will keep them in the buffer until it gets a terminator.) Even if it's not the problem, strace may give you a hint of what is happening. If it doesn't, pastebin it somewhere and give us the link. -- Laurent
