Checking why I received a complaint that an e-mail wasn't delivered (with different versions of 'it was sent to us' and 'we sent it')
Hunting through the logs I found it was an 18MB attachment (not me someone else :-}, but that is another story) being sent. Anyway the qmail log shows new msg line, recipient line details and end msg, all normal and expected. Appears to have transferred correctly. I checked maillog and discovered the same e-mail transaction but an accompanying message 'couldn't lock spool file using flock (resource temporarily unavailable)' and the next logged line has the normal 'forwarded to recipient' but it is 1 second later (suspicious... 18MB/second on ADSL - not likely - especially when the qmail log indicated 4 hours, which maybe an error timeout period).
Query. Anyone else seen this, why the difference in the logs and what does the error actually mean. Has it failed due to an allocation error this or that end. Is it a bug in qmail or smtpfwd? does it just drop the message after a failure like this?
A du in the /var/ tree shows nothing unexpectedly large under qmail. I can't see any other large files around that are the right size anywhere. Adequate disk space - a df shows over 250MB on the / partition and 500MB on a second drive mounted as /var/log (swap is 250MB).
I am implementing an ibay for future use but meanwhile would like to track this one down.
Any ideas
Regards
kevin
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