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SMTP PDU Trace (cont’d)

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SMTP PDU Trace (cont’d)

  • IP_PDU MailServer UA DATA TCP IP subtotal

  • --------------------------------------------------------------------

  • 15 SMTP .<------ "DATA" ---------- . 6 26 46

  • 16 TCP . ------- ACK ------------>. 0 20 40 (86)

  • 17 SMTP . ----354..end with "."--->. 50 70 90

  • 18 TCP .<------- Push ACK ------- . 0 20 40 (130)

  • 19 SMTP .<--Mail header+body ----- . 437 457 477

  • 20 SMTP .<------ . --------------- . 5 25 45

  • 21 TCP . ------- ACK ------------>. 0 20 40 (562)

  • 22 SMTP . ------- 250 Ok --------->. 8 28 48

  • 23 TCP .<------- Push ACK ------- . 0 20 40

  • 24 TCP .<------- Push Reset ----- . 0 20 40 (128)

  • ----------------------------------------------------------------------

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