Windows Live Mail rejecting GROUP response

Matt Seitz (matseitz) matseitz at cisco.com
Mon Jun 4 20:27:15 UTC 2012


From: Julien ÉLIE [mailto:julien at trigofacile.com] 
>
>Your "count < high - low + 1" inequality is valid per RFC.
> I believe there is a bug in Windows Live Mail if it closes the connection when seeing such an answer!

Agreed.  I've raised the issue on Microsoft's support forum.  I am told they are taking a look at it, but I have not received confirmation that this is a bug in Windows Live Mail:

http://answers.microsoft.com/thread/cb9e4212-0a6c-4d2a-9ac3-26f825f2fe19

> I think this inequality occurred so maybe the problem is generated by another reply; 

Hmm, I just notices there is one more reply from the INN server following the GROUP reply.  But I don't see a corresponding request from WLMail, so I'm not sure what this additional reply means.

Here's a summary of the whole exchange:

No.     Time               Source                Destination           Protocol Length Info
      1 13:16:46.664175000 dhcp-171-71-137-42.cisco.com snews-sj.cisco.com    TCP      66     51333 > nntp [SYN] Seq=0 Win=8192 Len=0 MSS=1460 WS=4 SACK_PERM=1
      2 13:16:46.664762000 snews-sj.cisco.com    dhcp-171-71-137-42.cisco.com TCP      66     nntp > 51333 [SYN, ACK] Seq=0 Ack=1 Win=49640 Len=0 MSS=1460 WS=1 SACK_PERM=1
      3 13:16:46.664924000 dhcp-171-71-137-42.cisco.com snews-sj.cisco.com    TCP      54     51333 > nntp [ACK] Seq=1 Ack=1 Win=65700 Len=0
      4 13:16:46.818496000 snews-sj.cisco.com    dhcp-171-71-137-42.cisco.com NNTP     120    Response: 200 snews InterNetNews NNRP server INN 2.4.3 ready (posting ok).
      5 13:16:46.818737000 dhcp-171-71-137-42.cisco.com snews-sj.cisco.com    NNTP     67     Request: MODE READER
      6 13:16:46.819200000 snews-sj.cisco.com    dhcp-171-71-137-42.cisco.com TCP      60     nntp > 51333 [ACK] Seq=67 Ack=14 Win=49640 Len=0
      7 13:16:46.819264000 snews-sj.cisco.com    dhcp-171-71-137-42.cisco.com NNTP     120    Response: 200 snews InterNetNews NNRP server INN 2.4.3 ready (posting ok).
      8 13:16:46.819445000 dhcp-171-71-137-42.cisco.com snews-sj.cisco.com    NNTP     84     Request: GROUP cisco.eng.cdets-trolls
      9 13:16:46.819956000 snews-sj.cisco.com    dhcp-171-71-137-42.cisco.com TCP      60     nntp > 51333 [ACK] Seq=133 Ack=44 Win=49640 Len=0
     10 13:16:46.820113000 snews-sj.cisco.com    dhcp-171-71-137-42.cisco.com NNTP     94     Response: 211 6907 1 6910 cisco.eng.cdets-trolls
     11 13:16:46.820444000 dhcp-171-71-137-42.cisco.com snews-sj.cisco.com    TCP      54     51333 > nntp [FIN, ACK] Seq=44 Ack=173 Win=65528 Len=0
     12 13:16:46.820899000 snews-sj.cisco.com    dhcp-171-71-137-42.cisco.com TCP      60     nntp > 51333 [ACK] Seq=173 Ack=45 Win=49640 Len=0
     13 13:16:46.820955000 snews-sj.cisco.com    dhcp-171-71-137-42.cisco.com NNTP     61     Response: 205 .
     14 13:16:46.821098000 dhcp-171-71-137-42.cisco.com snews-sj.cisco.com    TCP      54     51333 > nntp [RST, ACK] Seq=45 Ack=180 Win=0 Len=0




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