This is the mail system at host
bastion01.phx2.fedoraproject.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
<codeframe(a)riseup.net>: host mx1.riseup.net[198.252.153.129] said: 450 4.7.1
<codeframe(a)riseup.net>: Recipient address rejected: Sorry, your message
cannot be delivered to that person because their mailbox is full. If you
can contact them another way, you may wish to tell them of this problem (in
reply to RCPT TO command)