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Professional creative essay proofreading services for schoolProfessional assignment ghostwriting site onlinePay to get esl best essay on hackingPay to get custom essay on hillary clintonHelp writing professional personal essay on lincoln Who Should Use This Document, this document is intended for use by large and enterprise businesses as they develop an effective architecture for their SmarterMail system implementation. For best results, this document should be used in conjunction the. Determining the Required Architecture, it is not unusual for a business to generate upwards of 50 legitimate mail messages, per employee, per day on average. Considering the relative volume of spam and other abusive messages that are currently prevalent, the total number of messages processed per user/mailbox could easily exceed 250 per day. Companies in technology, finance, and other communication-intensive industries might have much higher average email volumes. A tendency toward the prolific use of attachments and email graphics can also influence performance in mail environments. SmarterTools encourages readers to determine which architecture is right for them based upon anticipated email volume as opposed to head-count because email load is a far better predictor of server requirements than the number of mailboxes on a system. SmarterMail is built around a fully scalable model, so moving from one architecture recommendation to another requires relatively simple enhancements or modifications that can yield significant increases in performance and volume capacity. That said, the authors have chosen to divide their recommendations into three categories: individual and micro-business architectures, small to medium-sized business architectures, and high-volume deployment architectures. For the purposes of these recommendations: Individuals and micro-businesses shall be defined as mail environments with average email volumes of up to 25,000 messages per day (12,500 in/12,500 out). This infers a maximum of 100 mailboxes. Information regarding these architectures can be found in SmarterMail in Individual and Micro-business Deployments, which is available for download on the SmarterTools website. Small to medium-sized businesses shall be defined as mail environments with average email volumes of up to 400,000 messages per day (200,000 in/200,000 out). This infers a maximum of 1,600 mailboxes. Information regarding these architectures can be found in SmarterMail in Small to Medium-sized Business Deployments, which is available for download on the SmarterTools website. High-volume deployments shall include ISPs, hosting companies, large businesses, and enterprise organizations with average email volumes numbering in the millions. This infers organizations with many thousands of mailboxes. Information regarding these architectures is available in this SmarterTools document. General Architecture, the general recommendation for the high-volume system architecture is detailed in Figure 1 below. The SmarterMail servers are the central data repositories of email. Users connect to these servers using POP and imap to receive email, and use smtp to send email out. Webmail is also established on these servers for those choosing to access email through the Web interface. A SmarterMail network may contain one or more mail servers. Under normal activityand assuming sufficient disk space3each server should be able to handle up to 40,000 users per server (1 million messages per day). For high-volume deployments utilizing this architecture, SmarterTools recommends the following server specifications for SmarterMail servers: Dual-core, server-grade processors 4 GB of RAM, rAID 1 array for the operating system and program files. One single drive or raid 0 array for the email spool. Raid 104 array to store user data and email. Windows Server 2008 R2 64-bit, virtual machines are not recommended for large deployments as restrictions on disk I/O can seriously impact performance. SmarterMail Outbound Gateways, outbound gateways are used for handling the delivery of remote mail to reduce the load on the primary mail server(s). An outbound gateway does not perform the tasks of storage and/or retrieval of end users mail via POP, imap or webmail, freeing it to process many times more outgoing messages than a primary server could be expected to handle effectively. SmarterMail includes support for round-robin gateway delivery (all types of gateway servers) and advanced gateway load-balancing (SmarterMail gateways only) to further balance the load on your gateways and making them better at delivering high volumes of mail quickly. Businesses setting up an outbound gateway can download SmarterMail Free and set it up as a free gateway server. More information about configuring SmarterMail as a free gateway server is available in the SmarterTools Knowledge Base. SmarterTools recommends the following hardware for SmarterMail outbound gateways: Dual-core processor 1 GB of RAM. Sata drive dedicated for the spool. This hardware configuration can support many SmarterMail servers, but SmarterTools recommends an ideal ratio of one gateway server for every five primary mail servers, reducing the risks of blacklisting and the effects of potential hardware failures.
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