Some customers of Google's Postini e-mail security product experienced significant problems Tuesday, with reports of hours-long delays in e-mail delivery that are still affecting some customers.

Threads throughout Google's Postini forums spread involving the issue, which seemed to begin overnight on System 7--one of several systems used by the service--and was still affecting some customers as of Tuesday afternoon, although e-mail delivery had resumed for others. Users also reported problems accessing the management consoles used to log into the Postini service, preventing them from understanding exactly what was happening.

Google's Postini suffers prolonged e-mail delays