What happens to iCloud mail if storage payment fails I'm thinking of switching to iCloud Email and to buy more storage (currently 5gb) but im not sure if it's reliable to be charged for the storage on a monthly basis. Can someone tell me what happens if a payment fails for some reason, can I still receive messages for some time until I resolve the issue (even if unable to login to my mailbox) or the sender will receive a delivery error?
Your data will remain but you won't be able to add more data until you reduce it back to below 5GB, i.e. If you have a 6GB backup, it will be unable to backup until you repay or you reduce your backup size below 6GB.