signal 11

["Kirill Sysoeff" <iam@vmb-service.ru>]

Hallo Everybody!

I've just made new mail server and everything seems to be OK, but....

when I said    '" mailq -s "
I saw the next strange thing:

local/client@service.net:
        R/96373-9505: (2 tries, expires in 2d21h) [signal 11]
        V/96403-9504: (2 tries, expires in 2d21h) [signal 11]
        Y/96406-9505: (2 tries, expires in 2d21h) [signal 11]
        P/96397-9504: (2 tries, expires in 2d22h) [signal 11]
        H/96415-9504: (2 tries, expires in 2d22h) [signal 11]

So the recipient recieved his mail, but it wasn't removed from
POSTOFFICE/queue and POSTOFFICE/transport.

Does anybody had the same problem?
Any suggestions?

I run Linux 2.4.2
Zmailer 2.99.54

Thanks
Kirill