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An email alias is simply a forwarding email address. The term ''alias expansion'' is sometimes used to indicate a specific mode of email forwarding, thereby implying a more generic meaning of the term ''email alias'' as an address that is forwarded in a simplistic fashion.〔RFC 5321 defines ''alias'' expansion as opposed to the ''list'' expansion of mailing lists, noting that the replacement of the address to whom bounce messages are returned makes a key difference. An email alias is different from a contact group, or distribution list. According to Microsoft, a contact group is "a grouping of e-mail addresses collected under one name. A message sent to a contact group goes to all recipients listed in the group."〕 ==Usage== Email aliases can be created on a mail server. The mail server simply forwards email messages addressed to an email alias on to another, specified email address. An email alias may be used to create a simple replacement for a long or difficult-to-remember email address. It can also be used to create a generic email address such as webmaster@example.com and info@example.com. On UNIX-like systems, email aliases may be placed into the file /etc/aliases and have the form: : local-alias-name: adifferentlocaluser, anotherlocaluser, an@external.user.example.com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「Email alias」の詳細全文を読む スポンサード リンク
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