qmail-send shutdown succeeded?

What does it mean?

[mcmrob]

Security Violations
=-=-=-=-=-=-=-=-=-=
Feb 2 10:57:39 plesk qmail: qmail-send shutdown succeeded

Can anyone tell me what this means exactly?

I get security violations e-mailed to me automatically. Apparently something caused this to happen on my server. Whatever it is.

[mcmrob]

Never mind, I had it figured out. Apparently, it's something that happens after a new site has been created in Plesk.