VBS script to select e-mail address from SQL table

HI All,

I am  having Vbs script to contact SQL table to send E-mail to different predefined group or  person for certain tasks.

Issue what we are facing is if there is any unknow User ( may be ID removed as person left the organization)  in that table assigned for task. Script stop at that point and report error Bad User error 550 . 

I would like to know will be be possible that i can do error check and remove that Error ID and E- mail goes to other user Or report out put in .Txt file and resume renaming code.