#2 Yahoo Mail:

Established in 1997, Yahoo Mail is one of the most successful mail providers across the world. This mail service features filters for messages, access to documents and sender address in just a click and inbox skimming which means that users can have a more professional approach towards the web service. Yahoo mail provides unlimited amount of storage space with a maximum amount of 25MB as the attachment size for messages. Other features include calendar reminders, chat, SMS, birthday reminders, drag and drop functionality, slideshows, mobile phone access, virus protection, SpamGuard, phishing protection, and integration with various apps. Recently Yahoo announced that they are trying to give a more socialized approach to their mail service by incorporating their service with some of the most social networking sites across the web. Yahoo also comes with an upgraded version called Yahoo Mail Plus which comes across $19.99 per year. With this upgrade users can get better access to POP3 instances, along with features like no account expiration, no ads and a better address guard.