Email is the most common use of the Internet. An Internet Service Provider takes on certain privacy and service continuity obligations to its customers. To sign email requires a Public Key Infrastructure - no other solution is viable.

well understood

Many email best practices have evolved over about two decades of public email use, but many organizations have much more detailed requirements for their service providers. See green web for a partial list of requirements for green procurement of such services.

Numerous approaches to email etiquette, email versus phone and whether decision via email is wise, have likewise evolved. Many attempts to find a technology-driven standard for these decisions have failed, and will continue to fail. Requirements vary radically with context. Any email best practice list is subject to substantial disagreement.


A mailing list sends mail to many people at once. Small personal ones are supported by email clients on terminals, longer ones typically are managed by a listserv or yahoogroup or opengroup type of technology.

alternate interface to web services

To search via email is supported by search engines and other web services. A Google Alert for instance sends notices to subscribers by email informing them of new matches to a search, typically searches on their name.

government services

An increasing number of services are available by email, including government services: see e-government and government services via email.

use in politics

Some political party organizations have used email effectively in their operations. The Green Party of Canada Living Platform let users participate by email.

openpolitics.ca itself

If you watch pages at openpolitics.ca itself you will receive any changes to those pages via email.

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