I have been using ADBASE EMAILER for almost 2 years now, and it has never disappointed me once! The customer service is amazing and they are always willing to help you out with anything related to their product or services. They offer many features that other providers do not include like sending text messages (SMS) which helps reach people who don't use online methods. Sometimes some emails get delivered twice so be sure to check if an email was sent before. Also, sometimes when someone replies back to a message from an autoresponder, it doesn't show up until sometime later. Sending mass emails is very easy because everything I need is included within the app itself. It's also super affordable compared to other products available in this market. People love how fast it can send bulk emails without any delays. We were able to increase our sales significantly by starting to implement more strategic ways.