Not Valid After: Wednesday, June 4, 2014 at 8:00:00 AM Eastern Daylight Time
This affects folks using SMTP clients.
Didn't we all learn our lesson about this stuff?
> printf 'quit\n' | openssl s_client -connect smtp.mail.yahoo.com:587 -starttls smtp | openssl x509 -enddate -noout
depth=1 /C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3
verify error:num=20:unable to get local issuer certificate
verify return:0
250 STARTTLS
DONE
notAfter=Jun 4 12:00:00 2014 GMT