The following message to <jamesleolky(a)outlook.com> was undeliverable.
The reason for the problem:
5.3.0 - Other mail system problem 550-"5.7.515 Access denied, sending domain LISTS.FSMPI.RWTH-AACHEN.DE 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 [TYCPR01MB10463.jpnprd01.prod.outlook.com 2026-03-23T11:21:00.570Z 08DE8814E20B4092] [DB9PR05CA0006.eurprd05.prod.outlook.com 2026-03-23T11:20:43.283Z 08DE888F0814FE52] [DB5PEPF00014B90.eurprd02.prod.outlook.com 2026-03-23T11:21:05.330Z 08DE84CC1D025A44]"
The following message to <jamesleolky(a)outlook.com> was undeliverable.
The reason for the problem:
5.3.0 - Other mail system problem 550-"5.7.515 Access denied, sending domain LISTS.FSMPI.RWTH-AACHEN.DE 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 [TY4PR01MB14844.jpnprd01.prod.outlook.com 2026-03-21T12:07:32.591Z 08DE85EBD5933059] [BY5PR03CA0002.namprd03.prod.outlook.com 2026-03-21T12:07:40.180Z 08DE870500905AE5] [CO1PEPF000075F2.namprd03.prod.outlook.com 2026-03-21T12:07:41.944Z 08DE84DEA321830D]"
The following message to <ellen-just(a)outlook.de> was undeliverable.
The reason for the problem:
5.3.0 - Other mail system problem 550-"5.7.515 Access denied, sending domain LISTS.FSMPI.RWTH-AACHEN.DE 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 [AS2PR08MB10268.eurprd08.prod.outlook.com 2026-03-10T07:15:06.588Z 08DE7D020063F19C] [AM0P190CA0007.EURP190.PROD.OUTLOOK.COM 2026-03-10T07:14:46.751Z 08DE7E5751557BBD] [AM2PEPF0001C711.eurprd05.prod.outlook.com 2026-03-10T07:15:06.586Z 08DE79A0F4DFCDAA]"
The following message to <ellen-just(a)outlook.de> was undeliverable.
The reason for the problem:
5.3.0 - Other mail system problem 550-"5.7.515 Access denied, sending domain LISTS.FSMPI.RWTH-AACHEN.DE 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 [DB9PR08MB6508.eurprd08.prod.outlook.com 2026-03-05T16:57:34.526Z 08DE7A6C566BBEA2] [AS4P189CA0045.EURP189.PROD.OUTLOOK.COM 2026-03-05T16:57:34.520Z 08DE78CF9ED57979] [AM4PEPF00027A6A.eurprd04.prod.outlook.com 2026-03-05T16:57:34.570Z 08DE7992F7C2F566]"
The following message to <sheronsebastiampillai(a)outlook.de> was undeliverable.
The reason for the problem:
5.3.0 - Other mail system problem 550-"5.7.515 Access denied, sending domain LISTS.FSMPI.RWTH-AACHEN.DE 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 [LOBP123MB8168.GBRP123.PROD.OUTLOOK.COM 2026-03-03T07:15:07.625Z 08DE78DAEE8A399D] [DUZPR01CA0294.eurprd01.prod.exchangelabs.com 2026-03-03T07:15:03.752Z 08DE78A060CAECFD] [DU6PEPF0000952A.eurprd02.prod.outlook.com 2026-03-03T07:15:07.645Z 08DE762E63DEE0B9]"
The following message to <sheronsebastiampillai(a)outlook.de> was undeliverable.
The reason for the problem:
5.3.0 - Other mail system problem 550-"5.7.515 Access denied, sending domain LISTS.FSMPI.RWTH-AACHEN.DE 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 [CW1P123MB8613.GBRP123.PROD.OUTLOOK.COM 2026-03-01T16:16:47.359Z 08DE77334B24196D] [AS9PR05CA0184.eurprd05.prod.outlook.com 2026-03-01T16:16:46.830Z 08DE77742DA8021F] [AMS0EPF000001A4.eurprd05.prod.outlook.com 2026-03-01T16:16:47.371Z 08DE758865613214]"