Gmail by Google has been deployed filter system to prevent any spam email showing on the main mailbox. But, no system is safe, in terms of this topic, there are a lot of spam mail sent to user’s email account without detected by the system. If so, there’s no other way besides to blocking the sender manually.
In this tutorial, I’ll provide a screenshot to follow based on Gmail desktop version, while mobile user like Android and iPhone should be understood to follow the same action.
How to Block Someone on Gmail
First, go to your Gmail account and locate the mail that sent by contact you desired to block. On that page, go to the drop-down menu on the top right corner mail page, and then click Block “contact name”.
After that you will get a warning message, just click Block to continue.
Now the contact and its email address marked as spam and you will no longer receive a future message from that person. This method is really good to prevent spam mail flooded the email. However, if you change your mind, you still able to unblock by this step:
How to Unblock Someone on Gmail
Go to the Settings option through gear icon on the right top corner of Gmail page.
Choose a Filters and Blocked Addresses tab and it will show a contact list that has been blacklisted. In order to unblock the email, mark the intended contact and then click Unblock selected addresses.
You also will get a warning message, click an Unblock button to proceed. It may take a few seconds depending on the number of people you want to unblock. Once unblocked, they can reach you by email as usual.
How to prevent spam email in the future?
Make sure you don’t subscribe to an uncredible entity that targeting your email. The mainstream subscription channel provides an Unsubscribe button on the bottom of the message. It usually very small and dim. You can use that option to prevent spam email in the future.