I am echoing the same issues other people are having here.   As of about 2am EST last night, I have not been able to receive any email from my domain.  Sending is fine.   

I have added a DKIM and SPF record to my registrar at Network Solutions.  I am able to verify the record via mxtoolbox and dkimcore.org.

mxtoolbox.com

dkimcore.org

However, I am unable to verify my key via the Zoho Portal:

Is Zoho having issues?  Is there something mis-configured on my side?  I have not needed DKIM in the past, so was this requirement added in the last 24-48 hours? 

Granted, I am a free account, so I know I don't have priority - but can someone either let me know whats up or point me in the right direction ASAP?

Thanks