This post is relating to where I have progressed since this HERE.

My script appeared to be working fine.  I am trying to locate the problem, but cannot.

When I used a particular "to" email address in the 'send mail' script it works fine.  When I use an expression to use the email address entered in the row I get this error.

I have been going through each row one by one (luckily only 41 meet the criteria) to see if I can find out why it gets stuck.

I'll make 3 rows meet the criteria then load the form so that the script runs.  Sometimes it loads fine, the mail is sent and Im off to the next 3.  Sometimes it gets stuck at this error and I can't figure out why.

Is it something in the script, the data entered???

Here's the full error