Whitelisting is a simple yet crucial step in email security best practices. It simply means telling your mail service to always let certain emails in. It works by adding an address to a special list so that its emails arrive in your inbox and never get marked as spam.

If a sender is mistakenly blacklisted, their messages will lend up the junk folder. Since you don’t want that, the following email whitelisting instructions will help you avoid the trouble of having important messages identified as spam.

No matter which service provider you use, understanding what is whitelisting an email will benefit you. So let’s help you make sure all the important emails go to your inbox whether you are using Gmail, Outlook, Yahoo, or other email providers.

If you use Gmail as your email provider, it’s easy to stop certain Gmail messages from going to spam. You just need to set Gmail spam filters to never mark all future communications from that sender as unwanted mail. Whitelisting emails in Gmail can be done quickly through the web client:

1. Log in to your Gmail account.
2. Click the Settings gear icon in the top-right corner, then select See all settings.
3. Navigate to the tab labeled Filters and Blocked Addresses to access information about your existing filters, and select Create a new filter.
4. Enter the emails or domains you want to add to the Gmail whitelist into the From section.
5. Click Create filter to confirm.
6. Put a mark next to Never send it to Spam to add this address to the Gmail safe sender list.
7. Click Create filter again to save settings.
8. Using Gmail’s filter settings, you can also star these emails, apply a chosen label, mark them as important, or perform other actions.

1. Open the Gmail app.
2. Navigate to Spam or Junk folder.
3. Click on the message you wish to view.
4. Select the option Report not spam. You will now receive messages from this sender as normal.

To whitelist email domain or a specific address in Outlook.com means adding it to a group called Safe senders. A whitelisted address will bypass Outlook spam filters and be delivered to your inbox. To add an address or domain to the Safe senders list:

1. Sign in to your Outlook inbox on the web.
2. Select the gear icon in the top right corner to access Settings.
3. On the left sidebar, click on Mail, then navigate to Junk email.
4. Click on +Add under Safe senders and domains to add a contact to the allowed list.
5. Enter the domain name or email address you wish to add to Safe senders. Make sure to include the @ character for domain names.

Alternatively, you can simply add an individual address that has sent you a message to your Outlook Contacts. Though they lead to the same result, this method is quicker and more efficient than manually entering information.

You can also whitelist emails in Outlook using your mobile device. Here’s how:

1. Open the Outlook mobile app.
2. Open a message from a sender you want to whitelist.
3. Click on the three dots on the top.
4. Click Move to Focused Inbox.
5. In the pop-up window, click Always Move to save your decision.

If you want to move a sender or domain name to the Yahoo Mail whitelist, the process is even simpler than with other service providers mentioned above.

If you have already received at least one message from the address and it ended up in the Spam folder, open the message and mark it as Not Spam.

Once you have marked the email as not spam in Yahoo, the Yahoo spam filter will automatically allow future messages from the same address into your inbox.

However, if the person you’re attempting to whitelist hasn’t yet sent you a message, you’ll need to go through the following steps to whitelist the address:

1. Navigate to Settings icon, then click More Settings from the Yahoo Mail menu.
2. Select Filters and hit Add new filters to enter information about the domain name or sender.
3. From here, you can enter any string of text you want to whitelist in future emails. This could be anything from an email address or domain name to something you expect to be in the body of the message.
4. Fill in the details and save the filter.

To whitelist Yahoo Mail on mobile, just follow these easy instructions:

1. Open the Yahoo Mail mobile app.
2. Click on the Inbox folder icon in the bottom left.
3. Choose Spam from the options.
4. Find and select an email from the sender you wish to whitelist.
5. Click Move and then select Inbox.

Many people looking for AOL whitelisting instructions are confused by the fact that there’s no traditional email whitelist. Instead, it considers all mail addresses users have in their address books to be trustworthy. This means that the contact list in AOL essentially serves the same purpose as the Gmail and Outlook whitelists.

Here are step-by-step instructions for whitelisting an email address in AOL:

1. Log in to your AOL account.
2. Open Contacts from the left navigation pane.
3. Click the New Contact icon and enter the required information.
4. Click the Save button at the bottom.
5. As you can see, the entire process is straightforward, and deleting existing contacts is similarly easy. All you need to do is select the address you want to delete, click Edit contact, and click Delete contact at the bottom of the page.
6. If you want to block the deleted contact, you need to go to Settings → Security and privacy → Blocked addresses. There, you can add the contact to your email blacklist or even choose to clock all senders except contacts.