Web-based email accounts are becoming more and more popular for international communication because many services are free, and they often offer features formally only found in higher-end applications.
First of all, consider the reputation and longevity of the company. If the company has been around for years, then there is more of a chance the company will be around for years to come. You don't want to set up an email account with a service that might not be here tomorrow.
Second, look for a company that offers a huge email storage limit. In the past, companies offered mailboxes of two, four, or six megabytes. Now, however, companies are stretching that limit to 250 megabytes or more. Such a mailbox is really need for exchanging pictures, video, or voice attachments.
Finally, check to see what features are available for filtering spam, or junk mail. Spam is really becoming a serious problem that not only transmits viruses and inappropriate content, but also reduces productivity in a company considering the amount of time it takes to review and delete unwanted messages.
Taking these steps will insure that you get the best email account possible