This is the mail system at host smtp2.osuosl.org.

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

hahahedc23@outlook.com: host outlook-com.olc.protection.outlook.com[52.101.11.8] said: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [SN1PEPF0002636B.namprd02.prod.outlook.com 2024-11-04T03:25:43.698Z 08DCFB7BA1E43C62] (in reply to RCPT TO command)