This is the mail system at host mailrelay07.thaicloudsolutions.com. 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 : host hotmail-com.olc.protection.outlook.com[52.101.40.30] said: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [CY4PEPF0000FCC3.namprd03.prod.outlook.com 2025-01-18T21:04:00.857Z 08DD37BF07AF5C13] (in reply to RCPT TO command) : host hotmail-com.olc.protection.outlook.com[52.101.40.30] said: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [CY4PEPF0000FCC3.namprd03.prod.outlook.com 2025-01-18T21:04:01.044Z 08DD37BF07AF5C13] (in reply to RCPT TO command) : host hotmail-com.olc.protection.outlook.com[52.101.40.30] said: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [CY4PEPF0000FCC3.namprd03.prod.outlook.com 2025-01-18T21:04:01.091Z 08DD37BF07AF5C13] (in reply to RCPT TO command) : host hotmail-com.olc.protection.outlook.com[52.101.40.30] said: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [CY4PEPF0000FCC3.namprd03.prod.outlook.com 2025-01-18T21:04:01.154Z 08DD37BF07AF5C13] (in reply to RCPT TO command) : host hotmail-com.olc.protection.outlook.com[52.101.40.30] said: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [CY4PEPF0000FCC3.namprd03.prod.outlook.com 2025-01-18T21:04:01.263Z 08DD37BF07AF5C13] (in reply to RCPT TO command) : host hotmail-com.olc.protection.outlook.com[52.101.40.30] said: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [CY4PEPF0000FCC3.namprd03.prod.outlook.com 2025-01-18T21:04:01.482Z 08DD37BF07AF5C13] (in reply to RCPT TO command) : host hotmail-com.olc.protection.outlook.com[52.101.40.30] said: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [CY4PEPF0000FCC3.namprd03.prod.outlook.com 2025-01-18T21:04:01.497Z 08DD37BF07AF5C13] (in reply to RCPT TO command) : host hotmail-com.olc.protection.outlook.com[52.101.40.30] said: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [CY4PEPF0000FCC3.namprd03.prod.outlook.com 2025-01-18T21:04:01.544Z 08DD37BF07AF5C13] (in reply to RCPT TO command)