In the next section, choose either Move to Folder, Move to Trash, or Forward to. Then select the folder to move the message to, or the email address to forward it to. Click Done, and the rule will become active.
Now, any messages meeting these conditions will be filtered on the iCloud server, and you won't need to leave your Mac on to do the job.
3. Let everyone know you're away
Here's something you can't do in Mail on the Mac, or on iOS. If you're away from work, or on vacation, you may want to set up an auto-response to tell people when you'll be back. Click the gear icon at the top-right of the iCloud Mail page, then click Preferences. Click the Vacation icon, and check Automatically reply to messages when they are received. Enter the text you'd like sent, and then click Done.
You can combine this with Rules to route work messages to colleagues, too. After you've set up the auto-response, click Rules, and create a rule for specific addresses or domains, and forward them to the person at work who's filling in for you while you're away. When you get back from your trip, just delete the rule.
4. Forward emails to another account
You probably don't have just an iCloud account; you may have another account for work as well. If you get some emails in your iCloud account, you can choose to forward them all to another account. This is a good way to use your iCloud account for some of your email, and download it when you check your main email account. Instead of checking two accounts, you can just check one.
Click the gear icon at the top-right of the iCloud Mail page, click Preferences, and then click General. Next to Forwarding, check Forward my email to, and enter an email address, such as your other account. You can also check Delete messages after forwarding, if you don't want them clogging up your iCloud mailbox.
5. Avoid spam with iCloud aliases
While you only have one iCloud email account, you can set up aliases or other addresses that you can use to send and receive emails with that account. In the iCloud email preferences, click Accounts, then, below the account list, click Add an alias. You can choose up to three aliases, and you may want to create one to use for online shopping sites, and another for friends, so you only use your main account for work. To avoid getting spam to your main address, use an alias when you have to give an email address to register.
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