Using filters in Yahoo Mail for iPhone
Use a filter when you want Yahoo Mail to automatically deliver specific kinds of email messages to folders other than the Inbox
To get started, select Filters on the navigation screen
Click + to begin adding a new filter
First, give your new filter a name
Next, define the rule or rules for your filter
Rules tell Yahoo Mail how to recognize incoming messages for delivery to a specific folder
Let's say you want all messages about Europe from Andy to go into the Vacation folder
Rule #1: The email is about Europe
Rule #2: The email is from Andy
Delivery folder: select Vacation
Save your filter
Ordering your filters
Your new filter appears at the bottom of the filters list
Yahoo Mail applies filters in the order listed, beginning with the top filter
Here the Andy filter is higher in the list than the Vacation filter
This filter delivers all emails from Andy into the Family folder
Because this filter applies first, all Andy's emails go into the Family folder
The Vacation filter doesn't even get a chance to apply
You can fix this by moving the filter up to change the order in which it applies
Now the Vacation filter is above the Andy filter, so it applies first
Emails from Andy with Europe in the subject are delivered to the Vacation folder
All other emails from Andy are delivered to the Family folder
Yahoo Mail lets you have up to 200 filters, so take advantage of them to get your incoming email organized!