You can't print or fax with Mac OS X 10.3. When you try, this alert appears: " Can't open '/private/var/spool/cups/d00158-001'".
Note: The name and number of the cups spool file may be different than the one above.
Received faxes you send by email to the address in Print & Fax preferences are never received, and no alert appears.
![](http://www.info.apple.com/images/kbase/25623/25623_1.jpg)
If you use sendmail (a mail function in the Darwin subsystem unrelated to the application Mail), this alert may appear:
"sendmail: fatal: file /etc/postfix/main.cf: parameter mail_owner: unknown user name value: postfix"
This can happen after:
- You've upgraded Mac OS X 10.2 through 10.2.8 to Mac OS X 10.3.
- You've used Disk Utilities Repair Permissions after upgrading.
- You receive a fax.
Download and install Mac OS X 10.3.1 or later to avoid these issues.