The best alternatives to Intimité are Protect IID, Landmark, and AnoneMail. If these 3 options don't work for you, we've listed a few more alternatives below.
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Learn to Protect your Internet Identity. Single-use email address is a generated email address that is used only once when signing up for a service. It makes impossible for attackers to predict which email address was used for which service.
This mobile client for Maskmail enables you to create unlimited disposable email addresses forwarded to your inbox in order to give them around instead of your real email address.