AOL Mail
1. Click Contacts in the right toolbar.
2. Click Add Contact.
3. Enter the email you want to whitelist and additional information if you wish.
4. Click Add Contact button in the popup to finish.

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Gmail
1. Open an email from the sender that you want to whitelist.
2. Click on the little down-pointing-triangle-arrow next to “reply.”
3. Click 'Add' to contacts list to finish.

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Apple Mail
1. Click the email you wish to whitelist in the header of the message you’re viewing.
2. Click Add to finish.

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Yahoo! Mail
1. Open the email message from the sender you want to add to your address book.
2. Click Add to contacts next to the whitelisted email.
3. On the Add Contact popup, add additional information if needed.
4. Click Save to finish.

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Windows Live Hotmail
1. Open an email from the sender that you want to whitelist.
2. Click Add to contacts next to the whitelisted email to finish.

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Outlook 2010
1. Click the Home tab.
2. Click Junk.
3. Click Junk E-mail Options.
4. Click Safe Senders.
5. Click Add.
6. Enter whitelist email and additional information if you wish.
7. Click OK to finish.

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