IUFC-699 Fix tests mails sent to participant's 2 addresses
IUFC-699 Fix tests mails sent to participant's 2 addresses

uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain,uclouvain/osis