trying to use the phpmail function in the linux LAMP server without success.

I am running Joomla on the standard LAMP  and tried the joomla appliance as well without success as well (thought the postfix MTA would be "out of the box configured")

inside of the mail logs it shows.

Dec 23 17:27:11 lamp postfix/master[7273]: warning: process /usr/lib/postfix/qmgr pid 2415 exit status 1
Dec 23 17:27:11 lamp postfix/master[7273]: warning: /usr/lib/postfix/qmgr: bad command startup -- throttling
Dec 23 17:28:11 lamp postfix/qmgr[2417]: fatal: qmgr_move: update active/554C742A9E time stamps: Operation not permitted
Dec 23 17:28:12 lamp postfix/master[7273]: warning: process /usr/lib/postfix/qmgr pid 2417 exit status 1
Dec 23 17:28:12 lamp postfix/master[7273]: warning: /usr/lib/postfix/qmgr: bad command startup -- throttling
Dec 23 17:29:12 lamp postfix/qmgr[2419]: fatal: qmgr_move: update active/554C742A9E time stamps: Operation not permitted

not sure if this is a related issue

http://www.turnkeylinux.org/forum/support/20111118/lamp-mail-config

thanks