[Inkscape-webmaster] Undelivered Mail Returned to Sender

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

3534283862@educ.dpcdsb.org: host educ-dpcdsb-org.mail.protection.outlook.com[104.47.75.164] said: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [YT3CAN01FT009.eop-CAN01.prod.protection.outlook.com 2024-01-05T19:50:54.877Z 08DC0DC6274612CF] (in reply to RCPT TO command)