Email service providers enable users to send, receive and review e-mail from their Web browsers. Email services offer easy access and storage of e-mail messages for users who are not connected to the Internet from their usual location.
Email services offer many of the same features and functionality for managing e-mail as desktop email software counterparts like Microsoft Outlook and Mozilla Thunderbird. Some of the more popular online email services are Yahoo! Mail, Gmail, Hotmail and AOL Mail.
Ability to create templates for sending to contacts and/or the use of templates pre-made.
A subscriber list, which is uploaded by the user for distributing messages. This may be enhanced with custom fields in order to hold additional information for each subscriber for filtering and targeted messaging purposes.
A send engine, which allows users to distribute their message to the subscribers.
Updating of the subscriber list to suppress those requesting to be unsubscribed.
Statistical reviews of each email sent to measure the success rate of the campaigns.
Testing of templates for compatibility with email applications.
Spam testing to gauge the score of the email against known factors that will place the template at risk of being blocked.
The ability to send both html and plain text formats to improve delivery success rates (known as Multi-Part MIME).
The ability to customise dynamically the content of emails that are sent out, to tailor personalised and relevant communications.