I am looking for the Lotus Script which would add X-header to the outgoing e-mail if it has particular item in the list. The item value is set from the custom checkbox, added to one of templates. I also would like to know where to add this script in designer view (querysend event?). Thanks.
If you have control over the Domino server, you can configure it to include certain Notes items as x-headers on outgoing mail.
Check out Always send the following Notes items in headers on Setting advanced outbound MIME options .