Before you send an email newsletter to the contacts stored in your Yahoo address book, you need to export the contacts from your Yahoo account to a common CSV file and import them into your email marketing software.
To export Yahoo contacts to a CSV file:
Login to your Yahoo account
Switch to Yahoo Mail Classic
Click on the Contacts tab
Click on Import/Export
Scroll down to the Export section
Click Export Now next to Microsoft Outlook
This will open a new window asking you either to open or save the file.
Click Save File.
When the contacts are exported, you can import your contact list into G-Lock EasyMail address book and send email newsletters to it. If you don’t have G-Lock EasyMail yet, download and register a free version of G-Lock EasyMail now.