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Haraka is an open source〔(【引用サイトリンク】website=GitHub )〕 SMTP server. Its architecture is plugin-oriented and event-driven. The server and its plugins are written in Javascript using the Node.js framework.〔http://haraka.github.io/README.html〕 Haraka follows a plugin model, implementing a very lightweight SMTP core and providing developers hooks into the mail flow. Almost all of Haraka's functionality is built as plugins. Through its use of the V8 JavaScript engine and asynchronous I/O, the author claims the server is capable of handling thousands of messages per second. Bounce.io announced that they regularly handle 2 to 5 thousand simultaneous SMTP connections with Haraka. == Typical Usage == Haraka is frequently used as a filtering MTA in front of other MTAs that lack the performance and/or filtering capabilities of Haraka. Craigslist uses Haraka〔(【引用サイトリンク】url=http://baudehlo.com/2012/02/17/craigslist-deploys-haraka/ )〕 to handle inbound and then forward validated connections to Postfix.〔(【引用サイトリンク】url=http://www.craigslist.org/about/thanks )〕 Bounce.io similarly uses Haraka to accept incoming messages and deliver them to their application engine. Mail Toaster 6 uses Haraka similarly to accept incoming mail and forward to a qmail based message store. 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「Haraka (software)」の詳細全文を読む スポンサード リンク
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