How to configure the whitelist in Apple Mail
iCloud (on laptop or computer)
MacOS Mail (on laptop or computer)
In the top menu, click Mail > Preferences.
Click the Rules tab.
Click Add Rule.
Enter a whitelist name in the Description field, such as "Whitelist: ihmexico.com" to create the new rule.
For conditions, set the first dropdown menu item to any. It should say: If any of the following conditions are met.
In the following dropdown menus, select From in the first field and Ends with in the second field.
In the text field following Ends with, enter @ihmexico.com into the field.
Click the plus sign next to the last condition
In the Perform the following actions section set the three fields to Move Message, to the mailbox, and Inbox (or a different target folder).
Click OK to save the rule.
Adapted from: https://sumo.com/stories/whitelist
Apple Mail App (on cell phone or tablet)
Apple Mail doesn’t have the option to whitelist like some other email providers do. Instead, all you can do is mark something as “Not Junk” and it will be sent to your inbox. Here’s how:
Open your Mail app and go to the Mailboxes screen.
Select the Junk folder.
Find the email you want to whitelist and swipe left to see options.
Tap the More button.
Tap the Mark button.
Tap the Mark as Not Junk button.
Adapted from: https://sumo.com/stories/whitelist
For those of you who don't want to read, here's a video tutorial.
Go to 1:45 in the video for iCloud Whitelisting instructions.
Instructions for Whitelisting on MacOS Email.