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Mon, 19 Jan 2004

If you ever see this message in your /var/log/qmail/current (or wherever you put it):

alert: cannot start: unable to open mutex
it can mean a couple of things, but as the message suggests, it surely indicates some file-access problem.

Google was not of any help there, but strace helps to find out that it tries to access file lock/sendmutex, so all you need to do is to recreate it, and set the owner to qmails:qmail.

On the matter of why this happened at all, I have a fairly simple explanation: I have been HUP-ing and KILL-ing qmail-send quite agressively, while doing some testing.

Unfortunately, I may have missed some mail during these ten minutes, so if I don't respond to you in the near future, perhaps that's what happened: please resend it.

[06:33] | [] | # | G | | TB
On the note of missed mails, shouldn't originating mail server repeat the sending of the mail if your server was down? ;)

Your excuse isn't very good, hehehe.. ;)
— Posted by alex at Mon Jan 19 11:49:57 2004
Well, since originator of the mail was 'fetchmail', I'm not really sure it does hold it up until my MDA is available, or it discards it, or bounces it back (which would be the worst thing of them all :).

Guess I'll need to reread fetchmail manpage to be sure what it did :)
— Posted by Danilo at Mon Jan 19 19:49:32 2004
Wait, your local mail server is not the MX for your domains? Ahh, now i get it why fetchmail is the originator, since you're popping your mail from some other mail server..
— Posted by alex at Wed Jan 21 01:11:34 2004

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