Assetlink, one of the leader in Marketing Resource Management, have recently added Campaign Management to its product suite. I have been a user of the product and the way it differentiate from others
a. Analytical Dashboard
b. Powerful Segmentation

The above two are apart from the usual solution provider of every Email Marketing Solution.
Visit : One-One Marketing for more information.

For high-capacity broadcast campaigns using dedicated servers:

DeliverabilityAgent.com is a complete email marketing platform intended for marketers that need to handle very large volumes of email while ensuring optimum deliverability. We developed the system with the goal of automatically achieving superior list hygiene and optimizing your reputation as a sender. This translates into maximum deliverability, while letting you concentrate on your marketing instead of being bothered with technical details. The time you save by not dealing with list scrubbing, spam-trap identification, bounce management, and complaints may be worth the price of the service alone. We will even monitor your servers for you to ensure they are always running smoothly and sending at maximum capacity.

Features include, but are not limited to:

- Full-featured campaign management software
- Automatic and intelligent list management
- Suspicious address reports
- Intelligent message throttling
- Comprehensive domain management
- Automatic link masking and redirect mechanisms
- Incoming email management
- Detailed reporting and geo-tracking
- Hands-off performance
- Flexible server architecture - swap IPs on the fly

I believe that aweber is the best because there are tutorial videos and it support you get is very good

And Here I would like to share Another Email Marketing Service Provider Email-M.Com. Its very good & it has affordable email marketing pricing & planning.I would suggest the internet marketers to use this service.

Email-M.com - Email Marketing | Email Marketing Solutions | Web-based Email Marketing Service

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Web Based Email Marketing Service Provider
Email Marketing
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