HOW TO SET THE OVERRIDE ADDRESS in WORKFLOW MAILER

--Set the override address to  'xyz@abc.com' , using the following script:
--Login to the application server..
cd $FND_TOP/sql
@afsvcpup.sql

Enter Component Id: 10006
Enter the Comp Param Id to update : 10093

Enter a value for the parameter  : xyz@abc.com


--Check the workflow services using the below query.

set pagesize 400
set linesize 120
set pagesize 50
column COMPONENT_NAME format a45
column STARTUP_MODE format a15
column COMPONENT_STATUS format a15
select fsc.COMPONENT_NAME,fsc.STARTUP_MODE,fsc.COMPONENT_STATUS
from APPS.FND_CONCURRENT_QUEUES_VL fcq, fnd_svc_components fsc
where fsc.concurrent_queue_id = fcq.concurrent_queue_id(+)
order by COMPONENT_STATUS , STARTUP_MODE , COMPONENT_NAME;

--
To Check What is the Current Email Address Set

SQL> select fscpv.parameter_value
    from fnd_svc_comp_params_tl fscpt
    ,fnd_svc_comp_param_vals fscpv
    where fscpt.display_name = 'Test Address'
    and fscpt.parameter_id = fscpv.parameter_id;  2    3    4    5

PARAMETER_VALUE
--------------------------------------------------------------------------------
xyz.abc@domain.com


Also one alternate is there to set it from back-end using the below query
------------------------------------------------------------------------------------------
update fnd_svc_comp_param_vals
set    parameter_value = '&EnterEmailID'
where  parameter_id =
( select parameter_id
 from   fnd_svc_comp_params_tl
 where  display_name = 'Test Address');

Note:No need of verification code to set the override address.