Undelivered Mail Returned to Sender
2 Dec
2024
2 Dec
'24
12:18 p.m.
This is the mail system at host smtp1.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.
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The mail system
ryniwu@teleg.eu: host mx2.den.yt[172.245.213.219] said: 553 mailbox name not allowed (in reply to end of DATA command)
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MAILER-DAEMON@osuosl.org