Zoho blocked my notification emails
I receive emails from a certain company whenever I have notifications from their services, but these emails stopped a while ago -about Oct 2016, we tried to solve the issue from our side, worked for a short time then stopped again-. I thought the problem in my settings in that company's services or in their own settings, but they told me that my mail provider blocked them, but I do not remember blocking any of their emails.
Can you help?