Salut, pour info, outlook.com semble bloquer le smtp du LIPN. Ciao, Thierry -------- Forwarded Message -------- Subject: Undelivered Mail Returned to Sender Date: Sun, 23 Aug 2026 10:50:13 +0200 (CEST) From: Mail Delivery System <MAILER-DAEMON@lipn.univ-paris13.fr> To: thierry.monteil@lipn.univ-paris13.fr This is the mail system at host mail.lipn.univ-paris13.fr. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <soroush.kazemi@outlook.com>: host outlook-com.olc.protection.outlook.com[52.101.10.15] said: 550 5.7.515 Access denied, sending domain LIPN.UNIV-PARIS13.FR doesn't meet the required authentication level. The sender's domain in the 5322.From address doesn't meet the authentication requirements defined for the sender. To learn how to fix this see: https://go.microsoft.com/fwlink/p/?linkid=2319303 Spf= Pass , Dkim= Fail , DMARC= Pass [GVXP190MB1918.EURP190.PROD.OUTLOOK.COM 2026-08-23T08:50:13.033Z 08DEFFDB588CD0DB] [BN9PR03CA0757.namprd03.prod.outlook.com 2026-08-23T08:50:13.064Z 08DF00D7BFD6E26E] [BN2PEPF00004FBB.namprd04.prod.outlook.com 2026-08-23T08:50:13.087Z 08DEFEA89DB768DB] (in reply to end of DATA command)