I have a joomla installation on a virtual server. When a user registers with the site a system email is sent to the site administrator notifying that a new user has signed up. These system emails are not being sent to the site administrator, instead they are being returned to the root user mailbox as failed.
Here is a copy of one of the failed emails
From MAILER-DAEMON@Labradio.localdomain (Mail Delivery System)
To apache@Labradio.localdomain
Date 12/09/2010 22:49
Subject Undelivered Mail Returned to Sender
Message contents
This is the mail system at host Labradio.localdomain.
I’m sorry to have to inform you that your message could not
be delivered to one or more recipients. It’s attached below.
For further assistance, please send mail to
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
Vinnis1@aol.com: host mailin-01.mx.aol.com[64.12.90.1] said: 554 5.7.1
apache@Labradio.localdomain: Sender address rejected: Access denied (in
reply to MAIL FROM command)
Failed delivery status
Final recipient Vinnis1@aol.com
Reason for failure 554 5.7.1 apache@Labradio.localdomain: Sender address
Remote mail server mailin-01.mx.aol.com
Reporting mail server Labradio.localdomain
Here is my system mail logs
Sep 12 22:11:41 Labradio postfix/smtpd[20515]: setting up TLS connection from localhost[127.0.0.1]
Sep 12 22:11:41 Labradio postfix/smtpd[20515]: TLS connection established from localhost[127.0.0.1]: TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)
Sep 12 22:11:41 Labradio sendmail[20571]: STARTTLS=client, relay=[127.0.0.1], version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Sep 12 22:11:41 Labradio postfix/smtpd[20515]: A8133100645: client=localhost[127.0.0.1], sasl_sender=apache@Labradio
Sep 12 22:11:41 Labradio postfix/cleanup[20518]: A8133100645: message-id=
Sep 12 22:11:41 Labradio postfix/qmgr[1354]: A8133100645: from=, size=1089, nrcpt=1 (queue active)
Sep 12 22:11:41 Labradio sendmail[20571]: o8CMBfi5020571: to=Vinnis1@aol.com, ctladdr=apache (48/48), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30701, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (Ok: queued as A8133100645)
Sep 12 22:11:41 Labradio postfix/smtpd[20515]: disconnect from localhost[127.0.0.1]
Sep 12 22:11:42 Labradio postfix/smtp[20520]: A8133100645: to=, relay=mailin-02.mx.aol.com[64.12.90.65]:25, delay=0.42, delays=0.04/0/0.29/0.09, dsn=5.7.1, status=bounced (host mailin-02.mx.aol.com[64.12.90.65] said: 554 5.7.1 : Sender address rejected: Access denied (in reply to MAIL FROM command))
Sep 12 22:11:42 Labradio postfix/cleanup[20518]: 2E1B81003CE: message-id=<20100912221142.2E1B81003CE@Labradio.localdomain>
Sep 12 22:11:42 Labradio postfix/qmgr[1354]: 2E1B81003CE: from=<>, size=3184, nrcpt=1 (queue active)
Sep 12 22:11:42 Labradio postfix/bounce[20523]: A8133100645: sender non-delivery notification: 2E1B81003CE
Sep 12 22:11:42 Labradio postfix/local[20524]: 2E1B81003CE: to=, orig_to=, relay=local, delay=0, delays=0/0/0/0, dsn=2.0.0, status=sent (delivered to mailbox)
Sep 12 22:11:42 Labradio postfix/qmgr[1354]: A8133100645: removed
Sep 12 22:11:42 Labradio postfix/qmgr[1354]: 2E1B81003CE: removed
Sep 12 22:37:08 Labradio sendmail[20886]: My unqualified host name (Labradio) unknown; sleeping for retry
Sep 12 22:38:08 Labradio sendmail[20886]: unable to qualify my own domain name (Labradio) -- using short name
Sep 12 22:38:22 Labradio sendmail[20963]: My unqualified host name (Labradio) unknown; sleeping for retry
Sep 12 22:39:17 Labradio sendmail[21019]: My unqualified host name (Labradio) unknown; sleeping for retry
Sep 12 22:39:22 Labradio sendmail[20963]: unable to qualify my own domain name (Labradio) -- using short name
Thanks in advance for any help.