Review: Horman99

• Solutions

  • Multiplex SMTP

    • Single layer

      • If recipient not local, must forward to correct server
      • With growth, amount of forwarding approaches 100%
    • Dual layer

      • No local recipients on front-end servers
      • Must always forward to correct back-end server
    • Add layer 4 load-balancing switches to hide number of machines accepting SMTP connections

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