MYDOMAIN.msnp > XXX.XXX.XXX.XXX.49198: Flags [S.], cksum 0x3c6c (correct), seq 3200521470, ack 311838542, win 14600, options [mss 1460,nop,nop,sackOK,nop,wscale 7], length 0
16:21:05.074030 IP (tos 0x0, ttl 111, id 731, offset 0, flags [DF], proto TCP (6), length 40)
    XXX.XXX.XXX.XXX.49198 > MYDOMAIN.msnp: Flags [.], cksum 0xb546 (correct), seq 1, ack 1, win 256, length 0
16:21:05.085271 IP (tos 0x0, ttl 111, id 732, offset 0, flags [none], proto TCP (6), length 40)
    XXX.XXX.XXX.XXX.49198 > MYDOMAIN.msnp: Flags [R], cksum 0x8a16 (correct), seq 311838542, win 0, length 0