Emails sent with iCloud email in the 'from' field not reaching the inbox

[Niewdanka]

When using Nodemailer to send emails with an iCloud email address specified in the 'from' field, the emails fail to reach the recipient's inbox. Despite successful sending from the sender's end, emails seem to be getting blocked or filtered before reaching the intended recipient's mailbox.

[SzymonGonet]

@andris9