The DNS RRs for mirc.com apparently contain a syntax error for the domainkeys:
"Authentication-Results: mta122.sbc.mail.re2.yahoo.com
from=mirc.com; domainkeys=fail (bad syntax)"
As domainkeys are one of the best ways to prove that e-mail originated from the sender claimed in the message header, many of us use success and failure of domainkeys validation as a discriminatory for spam.
Would you please consider correcting the domainkeys entry?
Thanks in advance,
Richard