[4] Fastmail was founded in 1999 by Rob Mueller, Bruce Davey, and Jeremy Howard, to provide email service for customers of the Optimal Decisions Group.

The provider's sole product line is email services (and included accessories), but it was owned by Opera Software (best known for its web browser) from 2010 to 2013.

The company stated that they had decided to focus Fastmail as a "premium brand" with only paid accounts.

[16] Existing users were given the option to subscribe to Fastmail with a discount or to request a refund of their one-time payment.

Fastmail stated that while their services were not "materially affected" since they already complied with warrants per the Telecommunications Act, concerns have been shown by customers over the bill's effects.

[21] Users are also able to create calendars and notes in the web mail environment and sync them over the IMAP and CalDav protocols.