When the storage limit for free emails (20 Gbytes) is reached, the owner of the email address is warned in an email, typically at the end of the month, with a header "URGENT: You’re over your storage limit, act now to avoid service disruption". I received such an email on July 28 but somehow didn't notice it and did not respond.

On August 27 another email from yahoo@email.cc.yahoo.com with the header "URGENT: You’ve exceeded your storage – email service is now limited" and after that Yahoo IMMEDIATELY stopped delivering emails sent to me.

I noticed this interruption of service on August 29 and SWITCHED right away to (paid) 100 Gbyte storage plan. The Yahoo service was restored the same moment and I started receiving new emails, but the emails possibly sent to me between August 27 and the afternoon of August 29 didn't appear. Customer service explained to me that these emails are lost and cannot be delivered.

I am pretty sure that these email are stored on some server(s), but there is no process in Yahoo to forward them to me.

My IDEA: Allow Yahoo customers to receive the emails that were not delivered after service interruption (when the service was "limited"). Give the customers time (a week or more) when the emails still could be delivered after the additional storage was paid off and the service functionality is completely restored.