Gmail is the most common platform for newsletter subscriptions. If you accidentally hit "Block" on a message, future emails from that sender are automatically sent to your Spam folder.
If you have an email from the blocked contact in your Junk Email folder, you can also unblock them directly from the email: how do i unblock someone on hotmail
If you've unintentionally blocked a newsletter like "Mail Lifestyle and Entertainment"—or perhaps a sender within that category—you can easily restore those messages to your inbox. Because "Mail Lifestyle and Entertainment" is a content category rather than a single email provider, unblocking it depends on which email service you use. Unblocking Senders in Gmail Gmail is the most common platform for newsletter
