Service Restored at 8:45 a.m.: This issue has been addressed, and Yahoo is no longer blocking e-mail from @colorado.edu accounts.
Service Issue Reported at 11:47 a.m.: A campus e-mail account was recently targeted by malicious e-mail and producing spam. While OIT has addressed this specific situation, when this occurs, Internet Service Providers often temporarily block e-mail for security purposes. Yahoo is currently blocking e-mail sent from @colorado.edu to @yahoo.com or @ymail.com addresses. As a result, campus e-mail sent to these addresses will be delayed. OIT is working to address the situation, and more information will be posted here as it becomes available.
To learn more about phishing attempts and how to not fall prey to them, visit the Office of Information Technology’s Security Awareness website at http://oit.colorado.edu/it-security/security-awareness/phishing.
To learn more about compromised accounts, spam and e-mail filtering, visit this page on the OIT website: http://oit.colorado.edu/news/spam_filtering .