Undelivered Mail Returned to Sender
5 Mar
2024
5 Mar
'24
2:34 p.m.
This is the mail system at host smtp3.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
950990044@mail.ru: host mxs.mail.ru[217.69.139.150] said: 550 Message was not accepted -- invalid mailbox. Local mailbox 950990044@mail.ru is unavailable: user not found (in reply to end of DATA command)
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MAILER-DAEMON@osuosl.org