[sclug] Php mail

[Peter Brewer]

Dear SCLUG,

I'm having problems using the mail() function in Php on my server.  I 
can successfully send an email from the command line like so:

echo "This message works" | mail -s "Testing message" 
somebody at somewhere.co.uk

However, if I try and send an email in php I get the following error 
recorded in mail.log:

Nov 28 16:51:06 localhost postfix/pickup[2834]: 8A91CA0064: uid=33 
from=<www-data>
Nov 28 16:51:06 localhost postfix/cleanup[2944]: 8A91CA0064: 
message-id=<20051128165106.8A91CA0064 at localhost.localdomain>
Nov 28 16:51:06 localhost postfix/qmgr[2835]: 8A91CA0064: 
from=<www-data at rdg.ac.uk>, size=596, nrcpt=1 (queue active)
Nov 28 16:51:23 localhost postfix/smtp[2946]: 8A91CA0064: 
to=<c.l.pearson at reading.ac.uk>, 
relay=mailhost-slb.rdg.ac.uk[134.225.2.32], delay=17, status=bounced 
(host mailhost-slb.rdg.ac.uk[134.225.2.32] said: 550-Verification failed 
for <www-data at reading.ac.uk> 550-Unrouteable address 550 Sender verify 
failed (in reply to RCPT TO command))
Nov 28 16:51:24 localhost postfix/cleanup[2944]: 5A09EA0065: 
message-id=<20051128165124.5A09EA0065 at localhost.localdomain>
Nov 28 16:51:24 localhost postfix/qmgr[2835]: 5A09EA0065: from=<>, 
size=2611, nrcpt=1 (queue active)
Nov 28 16:51:24 localhost postfix/qmgr[2835]: 8A91CA0064: removed
Nov 28 16:51:28 localhost postfix/smtp[2946]: 5A09EA0065: 
to=<www-data at rdg.ac.uk>, relay=mailhost-slb.rdg.ac.uk[134.225.2.32], 
delay=4, status=bounced (host mailhost-slb.rdg.ac.uk[134.225.2.32] said: 
550 unknown local address (in reply to RCPT TO command))
Nov 28 16:51:29 localhost postfix/qmgr[2835]: 5A09EA0065: removed


I'm almost certain the Php is fine as the identical script works fine on 
another server.  Anyone got any ideas what's going wrong?

Cheers again.

Pete