I need to import 50k email ids for magento newsletter subscription.I found a tutorial to import, http://www.g31zone.com/?p=187. Is importing 50k email ids through an array is feasible?Is their any other way to import?
Edit
Is it possible to import customer name through this array?
Looking forward for your response!
Here is an extension:
http://www.magentocommerce.com/magento-connect/Jan+Wohlfeil/extension/2358/newsletter-address-import/reviews
Newsletters are in a different table to customers and import quickly.
With 50K subscribers you may want a proper newsletter manager, e.g. one where you can track bounces etc. CiviCRM CiviMail or phpnewsletter should do that for you.