Fix MDN URL

Hi,

I am establishing a new AS2 connection for a customer, but I'm having a problem with MDN sending. They report not getting the MDN.
I have this in the log :

[14:35:43] mendelson_opensource_AS2-1521470143682-4@EG: Préparer la connexion MDN sortante vers "http://testas2.mendelson-e-c.com:8080/as2/HttpReceiver", connexions actives: 1/5.
[14:35:43] mendelson_opensource_AS2-1521470143682-4@EG: Envoi d'un MDN asynchrone vers http://XXXXXXXXXX/as2/HttpReceiver. [14:35:47] mendelson_opensource_AS2-1521470143682-4@EG: Message envoyé avec succès (HTTP 200); 3,30 KB transféré en 3,32s [0,99 KB/s].
[14:35:47] mendAS2-1521470142708-1961@EG: Succès de la communication AS2, le contenu 1 a été déplacé vers "/home/mendelson/messages/e/inbox/g/DELINS.18031915353514355".
I don't know where I can delete this in the configuration : "http://testas2.mendelson-e-c.com:8080/as2/HttpReceiver"

Forum
AS2