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The Internet service spamgourmet has offered disposable email addresses since October 29, 2000, as protection against spam. The service is free, and is supported by donations (and until April 2013, also advertisements on the website). == Functionality == If a user requires an email address to give to a third party, but does not want to use a "real" account, a new "disposable" address can be constructed on the fly using this service. Assuming the user has registered an account at the spamgourmet website (or an equivalent service provider), emails sent to the disposable address will be automatically forwarded to the forwarding address in the user's account. Each disposable address automatically expires (stops forwarding messages) after several messages are sent to it. The user can set the default expiration count for each new disposable address to any number up to 20, and can restart the expiration count at any time. When an address expires, messages sent to it are discarded rather than forwarded, and the sender receives no indication that the message was unsuccessful. After the initial account registration, users do not need to revisit the website (unless they choose to use "advanced" features or change their forwarding address). They can use the service merely by giving out new addresses when third parties ask for an email address. (The service will automatically create the new address when the third party, or anyone else, first sends email to it.) Each user can give out as many disposable addresses as desired. Each user can maintain a whitelist of "trusted" senders (or domains), and for each disposable address the user may whitelist a single "exclusive" sender (or domain or regular expression match pattern). Messages from whitelisted sources do not decrement the expiration count and are always forwarded (unless the user deletes the forwarding address from the account). To prevent third parties from arbitrarily creating new addresses that will forward to the user, the service allows users to configure particular patterns that a valid address must contain. (See "Watchwords" below.) Regular expression matching is used for this function. Another feature of the service allows users to reply to received messages without revealing their true email addresses. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Spamgourmet」の詳細全文を読む スポンサード リンク
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