iCloud email blocking certain senders and authentication emails with codes
I am having a peculiar situation where iCloud email is blocking certain senders that sends me authentication emails with codes (i.e. Webull, Kraken, etc.). It is not coincidence that it is only emails containing codes. I have received these with other email providers such as Gmail so the issue remains only on iCloud.
I have "whitelisted" the senders, I have even created rules to send emails from these senders to a specific folder and even tried to forward all emails to a Gmail account and no luck.
Has someone had the same issue? If so, please share how did you solved it.