Starting at 1:00pm today aol and yahoo.fr are blocking emails from us. I will not be able to look at the issue until later today.
Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
Starting at 1:00pm today aol and yahoo.fr are blocking emails from us.

I will not be able to look at the issue until later today.
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
<{redacted}@aim.com>: host mx-aol.mail.gm0.yahoodns.net[98.136.96.92] said:
554 Message not allowed - [PH01] Email not accepted for policy reasons.
Please visit https://senders.yahooinc.com/error-codes (in reply to end of
DATA command)
host mta5.am0.yahoodns.net[98.136.96.74] said: 554
Message not allowed - [PH01] Email not accepted for policy reasons. Please
visit https://senders.yahooinc.com/error-codes (in reply to end of DATA
command)
Now that I am positive that we have everything correct as Yahoo wants it. I opened a ticket with them to see if we can get it fixed.
Standby