We have been facing an on-and-off surge in network traffic that is causing these service disruptions. It is a denial of service attack, and we are working with our service providers to mitigate it.
As we work through these, we are also putting in place stronger measures so that we can withstand serious attacks in future.
We sincerely apologize for these service disruptions. Our own business relies on Zoho so we know how painful these disruptions can be. We want to assure you that we are working on both short term and long term steps to handle these attacks.