Alongside iOS 15, Apple introduced iCloud+ which has a feature called ‘Hide My Mail’.Tthe feature simply allows users to create new random email addresses which then forward to their main inbox. The idea is for users to use different emails on different services, so if one website is breached or starts sending spam, you can simply disable the email.
Now Fastmail has introduced a feature called ‘Masked Email.’ At its core, it is similar to the offering from Apple but it has one major benefit – no ecosystem lock in.
With Hide My Email from Apple, all emails generated use the @icloud.com domain, despite allowing custom domain support. With Fastmail (by default) the service will generate emails using the @fastmail.com domain, however, Fastmail does allow users to use a custom domain with this service which is a major difference.
Fastmail sometimes falls short because it is not convenient to log in each time to just generate a new email. That is where 1Password comes in: users can now link their Fastmail account to 1Password and this will generate masked emails right from the email forms on websites via 1Password. From within the 1Password UI it is also possible to block emails should one start sending spam, for example.
Many users have suggested it is better to just use a catch-all with a custom domain, however this generally is not the best idea since it isn’t as simple to block email addresses if you need to.
Overall the offerings from Fastmail and 1Password are generally similar to Apple’s offering. Other companies such as DuckDuckGo and Mozilla have also launched similar services but so far the service from Fastmail is the only one to support custom domains.