Hello, I have ISPC3.2.6 multiple server with ubuntu20.04 I set a domain through API : php cli connected on ns3 (ns3 is the one hosting web interface... not obvious !) It shows this I didn't create that domain on ns3. I create on mail1 this is what web interface shows I check inside my server. ls /var/vmail is empty on ns3, ls /var/vmail contains client6.fr on mail1. I don't understand first panel showing ns3... I suspect dovecot to be incorrect because I can't connect with roundcube. I use that function and params Code: $mail_id = $client->mail_domain_add($session_id, $client_id, $params); $params = array( 'server_id' => $CONFIG['server_id'], 'domain' => $CONFIG['domain'], 'active' => 'y', ); Server_id is correct (mail1) as shown by 2nd picture and verified on server. What is incorrect in my process ? what does that function : $domain_id = $client->domains_domain_add($session_id, $client_id, $params); ?