Chapter 5 FortiOS Carrier : MMS Security features : MMS virus scanning : MM1 sample messages
  
MM1 sample messages
Internet Protocol, Src Addr: 10.128.206.202 (10.128.206.202), Dst Addr: 10.129.192.190 (10.129.192.190)
Transmission Control Protocol, Src Port: 34322 (34322), Dst Port: http (80), Seq: 1, Ack: 1, Len: 1380
Source port: 34322 (34322)
Destination port: http (80)
Header length: 20 bytes
Flags: 0x0010 (ACK)
Window size: 24840
Checksum: 0x63c1 (correct)