Hi, I have a problem sending mail with sendmail in ubuntu 8.04. Sendmail sends the email from a command line 'mail -s "subject" email.addr < /filename' but does not send the email from a php mail function.
The mail.log has the following for the one that works:

Nov 26 09:15:22 earl-desktop sm-mta[6991]: mAQGFCxY006991: from=<earl@domain.home>, size=592, class=0, nrcpts=1, msgid=<200811261614.mAQGEpka006990@domain.home>, proto=ESMTP, daemon=MSP-v4, relay=localhost [127.0.0.1]
Nov 26 09:15:22 earl-desktop sendmail[6990]: mAQGEpka006990: to=<ep@mac.com>, ctladdr=earl (1000/1000), delay=00:00:31, xdelay=00:00:10, mailer=relay, pri=30347, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (mAQGFCxY006991 Message accepted for delivery)
Nov 26 09:15:37 earl-desktop sm-mta[6993]: mAQGFCxY006991: to=<ep@mac.com>, ctladdr=<earl@domain.home> (1000/1000), delay=00:00:15, xdelay=00:00:15, mailer=esmtp, pri=120592, relay=smtp-mx6.mac.com. [17.148.20.69], dsn=2.0.0, stat=Sent (Ok.)

And only the following for the php mail function:

Nov 26 09:19:45 earl-desktop sendmail[7023]: mAQGJjcP007023: from=www-data, size=86, class=0, nrcpts=0, msgid=<200811261619.mAQGJjcP007023@domain.home>, relay=www-data@localhost

Any suggestions will be appreciated.