Whitelisting email addresses is a way to ensure that messages from certain senders are not treated as spam. This can be useful for important emails that you want to receive, such as communications from your employer or financial institution.

To whitelist an email address, you need to add it to your email client's list of approved senders. The specific steps for doing this will vary depending on the email service you use, but here are the general steps you can follow:

Open your email client and go to the settings or preferences section. This is usually located in the top menu, under a gear icon or something similar.

Look for a section related to spam filtering or email blocking. This section may be called something different depending on the email service you use, but it should allow you to manage the list of approved senders.

Add the email address you want to whitelist to the approved senders list. This will usually involve entering the email address into a designated field and clicking a button to save it.

Once the email address is added to the approved senders list, messages from that sender should no longer be treated as spam. However, you may need to check your spam folder to ensure that the messages are not being accidentally routed there.

It's important to note that whitelisting only works for the email client you are using. If you use multiple email clients or devices, you will need to whitelist the email address on each of them. Additionally, some email services may not have a whitelist option, in which case you will need to use other methods to ensure that important messages are not treated as spam.

To summarize, whitelisting email addresses is a way to ensure that important messages are not treated as spam. To whitelist an email address, you need to add it to your email client's list of approved senders. The specific steps for doing this will vary depending on the email service you use, but the process is generally straightforward.