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Sendmail error: 550 5.1.8 invalid/host-not-in-DNS

 
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Old 04-21-2009
Sendmail error: 550 5.1.8 invalid/host-not-in-DNS
I have sendmail setup to relay through my external ISP. Everything was working fine until I started getting the error message (below). I don't what I did to cause this? I have read a number of related posts and it appears that I might need to configure the sending address of my server to appear differently but I am not sure if this is right or how to do this. Thanks for the help.


The original message was received at Sun, 19 Apr 2009 12:11:09 -0400
from trixbox1.localdomain [127.0.0.1]
----- The following addresses had permanent fatal errors -----

(reason: 550 5.1.8 invalid/host-not-in-DNS return address not allowed)
----- Transcript of session follows -----
... while talking to outgoing.verizon.net.:
>>> MAIL From: SIZE=32121
<<< 550 5.1.8 invalid/host-not-in-DNS return address not allowed
554 5.0.0 Service unavailable
 
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LEARN ABOUT HPUX

vxvoladmtask

vxvoladmtask(1M)														  vxvoladmtask(1M)

NAME

       vxvoladmtask - administer ISP tasks

SYNOPSIS

       vxvoladmtask abort task_tag

       vxvoladmtask clear [task_tag]

       vxvoladmtask list

       vxvoladmtask [-t time] [-n] monitor task_tag

       vxvoladmtask set task_tag=new_task_tag

DESCRIPTION

       The  vxvoladmtask utility can be used to perform basic administrative operations on tasks that have been created by the Intelligent Storage
       Provisioning (ISP) feature of Veritas Volume Manager (VxVM).  You can use the command to list ISP tasks, to monitor their  states,  and	if
       required, to cancel tasks.

KEYWORDS

       abort	 Cancels the specified ISP task.

       clear	 Removes  all  ISP  task objects from the specified task.  If no task is specified, this keyword clears all task objects for tasks
		 that have a status of CANCELLED, DONE or FAILED.

       help	 Displays information on vxvoladmtask usage.

       list	 Lists all ISP tasks.

       monitor	 Monitors the specified ISP task.

       set	 Renames the tag for an ISP task.

OPTIONS

       -n	 Monitors ISP tasks that are newly registered while the program is running, as well as	the  specified	ISP  tasks.   This  option
		 applies only to the monitor keyword.

       -t time	 Exits monitoring after time seconds.  This option applies only to the monitor keyword.

EXAMPLES

       List all ISP tasks:

	      vxvoladmtask list

       Remove the ISP task object with the tag, Task1:

	      vxvoladmtask clear Task1

       Cancel the allocator task object with the tag, Task2:

	      vxvoladmtask abort Task2

EXIT STATUS

       The  vxvoladmtask  utility exits with a non-zero status if the attempted operation fails.  A non-zero exit code is not a complete indicator
       of the problems encountered, but rather denotes the first condition that prevented further execution of the utility.

SEE ALSO

       vxvoladm(1M), vxpool(1M), vxtemplate(1M), vxusertemplate(1M)

VxVM 5.0.31.1							    24 Mar 2008 						  vxvoladmtask(1M)