Error while creating Portfolio Item

Dear Experts,

We are using Asset Manager 5.10 build 6441 and DB is SQL Server 2005.

Configurations Done:

We have configured one workflow which automatically triggers an messaging action (mail notification) once the new Portfolio Item is created.

Problem Description: when we are trying to create a protfolio item on the AM Server directly, it is creating the items successfully along with mail notifications.

But when we are trying to create the item on some client machine we are getting the following error:-

2009/06/19 12:06:26.000 0 1 [Thrd#:3540](0) Message not sent to 'admin-assetmanager-@xyz.co.in': messaging not available
2009/06/19 12:06:26.000 0 1 [Thrd#:3540](0) Message not sent to 'Admin': messaging not available
2009/06/19 12:06:26.000 0 1 [Thrd#:3540](0) Message not sent to 'HarjeetAdmin': messaging not available
2009/06/19 12:06:26.000 0 1 [Thrd#:3540](0) Action 'New Portfolio Item Creation Action' failed to execute
2009/06/19 12:06:26.000 0 1 [Thrd#:3540](0) Error executing action from activity 'New Portfolio Item Creation' in workflow 'Portfolio Item Creation'.
2009/06/19 12:06:26.000 0 1 [Thrd#:3540](0) Unable to create ' DX6120 (DL-062009-2-LN-0000124::003830)' in table 'Portfolio items (amPortfolio)'.


Please suggest how to solve the same.I am attaching the screen shots of the workflow and the errors.


Further, while defining the workflow under activation conditions we have defined Post-Insert then why it is trying to execute the action before creation of the Portfolio item.


Thanks and Regards,
Atul Gupta