[Inkscape-webmaster] Undelivered Mail Returned to Sender

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.

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

bellytesser@aluno.com.br: host aluno.com.br[67.228.82.107] said: 550-The mail server could not deliver mail to bellytesser@aluno.com.br. The 550-account or domain may not exist, they may be blacklisted, or missing the 550 proper dns entries. (in reply to RCPT TO command)