Right now, the issue seems to be network related. The various Zoho services impacted do not share servers or databases. We are analyzing the network problem, and we will post updates as soon as we have additional information.
Our highest priority right now is to restore services. Once we do that, we will post the root cause and further analysis.
As of 10:26 AM PST, we are looking at internal DNS related issues in our data center. The servers and the databases are all up, internal monitoring from within the data center is reporting things fine. We are working on this issue as expeditiously as possible. Again please accept our apologies.
Let me explain what we are doing. We have our operations team split into network, server and application (software) focus area. We have looked at each component, and have identified that network is the problem. We are narrowing that down further between load balancers, DNS and switches. Right now, one switch is under suspicion and we are working on it.
This is the status as of 10:38 AM PST. We will provide updates as soon as available.
Update 11:07 AM: We are still working on the network related issue with the goal of restoring the services as soon as possible.
A team of 6 members is working on this as as we speak. And software teams are also on stand-by, though we don't believe this is a software/application issue.
Yes, it is frustrating to have them down, and our own business runs on Zoho, so we understand this fully. Our profound apologies. Once we restore services, our highest priority right now, I will provide a detailed update.
We have restored Zoho Books and Zoho Support as of 12 noon. We are still not completely out of the woods, and are working on everything to full working order as the highest priority. A full root cause analysis will follow.
There should not be any issues in accessing Zoho Mail account over POP/IMAP simultaneously.
Ensure that the server settings entered in the respective mail clients are correct by referring the page POP and IMAP. If you still face any difficulties, send us the screen shot of the settings entered and also the error message (if any) appeared on the mail client to support[at]zohomail.com for our further analysis.