So you've had an email come into your spam on Yahoo, and you want to make sure that it doesn't happen again.
There are two things you should do.
The quickest and easiest step you can take is to report the email as not spam. This flags to Yahoo that they made a mistake with their spam filter.
This will likely work on its own.
Open the email, and click the "Not Spam" button
Add a filter to stop emails from this email address going into spam.
On the main Yahoo dashboard, click on the settings in the top right corner and select "More Settings".
On the left hand column click "Filters". In the second column click "Add new filters". Fill out the form, making sure you set the folder to move to as "Inbox". Click Save.
Are you looking for help on a different email provider to Yahoo?
Here are some other providers we have guides for: