We have been without Email capabilities and GMail Integration for over 5 days - Business Down. Has anyone else experienced this?

We have been without Email capabilities and GMail Integration for over 5 days - Business Down. Has anyone else experienced this?

5 Days ago we noticed that ZOHO CRM stopped integrating with our Gmail. All worked fine for years and all of a sudden, no more Gmail integration. Upon further investigation,. we found that we could no longer send or receive ANY emails from./to ZOHO adn sending an email returned the error: "Given FromAdress Not Exist".

It has been 5 days that ZOHO Support has been attempting to resolve this and has apparently "Escalated" the issue without any progress,

Our business has been down for 5 days and we are looking to abandon ZOHO altogether for a solutions with works.

Has anyone else experienced this decreased level of support quality from ZOHO?  We have been loyal ZOHO client for over a decade and expect better support for such a catastrophic issue.