Exchange 421 4.4.2ConnectionResetが原因で接続が切断されました

Question

私は次の詳細でExchangeServer2010を持っています：

Exchange Server 2010 Microsoft Corporationバージョン：14.03.0146.000

添付ファイルなしでテストメールをyahooに送信しようとすると、正常に配信されますが、このメールに添付ファイルを追加すると、Exchangeサーバーのキューに長時間留まるため、このメールが6〜1日後にyahooに配信されることがあります。そして時々そうではありません。

これはExchangeサーバーのエラーコードです。

Identity: PHOENIX-EX1\716\2651
Subject: test with attachement
Internet Message ID: <[e-mail]>
From Address: [email protected]
Status: Ready
Size (KB): 1702
Message Source Name: FromLocal
Source IP: 255.255.255.255
SCL: -1
Date Received: 9/6/2013 10:04:56 PM
Expiration Time: 9/8/2013 10:04:56 PM
Last Error: 421 4.4.2 Connection dropped due to ConnectionReset
Queue ID: PHOENIX-EX1\716
Recipients:  [email protected];2;2;421 4.4.2 Connection dropped due to ConnectionReset;0;CN=internet,CN=Connections,CN=Exchange Routing Group (DWBGZMFD01QNBJR),CN=Routing Groups,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=phoenixpower,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=phoenixpower,DC=co,DC=om

同じメールをGmail、hotmailアカウントに問題なく送信できます。

ログの送信

2013-09-06T21:08:30.943Z,internet,08D079499566A968,14,192.168.111.40:63440,98.136.216.25:25,-,,Remote
2013-09-06T21:08:30.943Z,internet,08D079499566A969,0,,98.136.217.202:25,*,,attempting to connect
2013-09-06T21:08:31.068Z,internet,08D079499566A969,1,192.168.111.40:63441,98.136.217.202:25,+,,
2013-09-06T21:08:32.144Z,internet,08D079499566A969,2,192.168.111.40:63441,98.136.217.202:25,<,220 mta1364.mail.gq1.yahoo.com ESMTP YSmtpProxy service ready,
2013-09-06T21:08:32.144Z,internet,08D079499566A969,3,192.168.111.40:63441,98.136.217.202:25,>,EHLO mail.phoenixpower.co.om,
2013-09-06T21:08:32.565Z,internet,08D079499566A969,4,192.168.111.40:63441,98.136.217.202:25,<,250-mta1364.mail.gq1.yahoo.com,
2013-09-06T21:08:32.565Z,internet,08D079499566A969,5,192.168.111.40:63441,98.136.217.202:25,<,250-8BITMIME,
2013-09-06T21:08:32.565Z,internet,08D079499566A969,6,192.168.111.40:63441,98.136.217.202:25,<,250 SIZE 41943040,
2013-09-06T21:08:32.565Z,internet,08D079499566A969,7,192.168.111.40:63441,98.136.217.202:25,*,2663,sending message
2013-09-06T21:08:32.565Z,internet,08D079499566A969,8,192.168.111.40:63441,98.136.217.202:25,>,MAIL FROM:<[email protected]> SIZE=1743480,
2013-09-06T21:08:32.987Z,internet,08D079499566A969,9,192.168.111.40:63441,98.136.217.202:25,<,250 sender <[email protected]> ok,
2013-09-06T21:08:32.987Z,internet,08D079499566A969,10,192.168.111.40:63441,98.136.217.202:25,>,RCPT TO:<[email protected]>,
2013-09-06T21:08:33.423Z,internet,08D079499566A969,11,192.168.111.40:63441,98.136.217.202:25,<,250 recipient <[email protected]> ok,
2013-09-06T21:08:33.439Z,internet,08D079499566A969,12,192.168.111.40:63441,98.136.217.202:25,>,DATA,
2013-09-06T21:08:33.611Z,internet,08D079499566A969,13,192.168.111.40:63441,98.136.217.202:25,<,354 end data with <CR><LF>.<CR><LF>,
2013-09-06T21:08:38.431Z,internet,08D079499566A969,14,192.168.111.40:63441,98.136.217.202:25,-,,Remote
2013-09-06T21:08:38.431Z,internet,08D079499566A96A,0,,98.138.112.32:25,*,,attempting to connect
2013-09-06T21:08:38.525Z,internet,08D079499566A96A,1,192.168.111.40:63442,98.138.112.32:25,+,,
2013-09-06T21:08:39.414Z,internet,08D079499566A96A,2,192.168.111.40:63442,98.138.112.32:25,<,220 mta1590.mail.ne1.yahoo.com ESMTP YSmtpProxy service ready,
2013-09-06T21:08:39.414Z,internet,08D079499566A96A,3,192.168.111.40:63442,98.138.112.32:25,>,EHLO mail.phoenixpower.co.om,
2013-09-06T21:08:39.819Z,internet,08D079499566A96A,4,192.168.111.40:63442,98.138.112.32:25,<,250-mta1590.mail.ne1.yahoo.com,
2013-09-06T21:08:39.819Z,internet,08D079499566A96A,5,192.168.111.40:63442,98.138.112.32:25,<,250-8BITMIME,
2013-09-06T21:08:39.819Z,internet,08D079499566A96A,6,192.168.111.40:63442,98.138.112.32:25,<,250 SIZE 41943040,
2013-09-06T21:08:39.819Z,internet,08D079499566A96A,7,192.168.111.40:63442,98.138.112.32:25,*,2663,sending message
2013-09-06T21:08:39.819Z,internet,08D079499566A96A,8,192.168.111.40:63442,98.138.112.32:25,>,MAIL FROM:<[email protected]> SIZE=1743480,
2013-09-06T21:08:40.209Z,internet,08D079499566A96A,9,192.168.111.40:63442,98.138.112.32:25,<,250 sender <[email protected]> ok,
2013-09-06T21:08:40.209Z,internet,08D079499566A96A,10,192.168.111.40:63442,98.138.112.32:25,>,RCPT TO:<[email protected]>,
2013-09-06T21:08:40.615Z,internet,08D079499566A96A,11,192.168.111.40:63442,98.138.112.32:25,<,250 recipient <[email protected]> ok,
2013-09-06T21:08:40.631Z,internet,08D079499566A96A,12,192.168.111.40:63442,98.138.112.32:25,>,DATA,
2013-09-06T21:08:40.740Z,internet,08D079499566A96A,13,192.168.111.40:63442,98.138.112.32:25,<,354 end data with <CR><LF>.<CR><LF>,
2013-09-06T21:08:44.936Z,internet,08D079499566A96B,0,,62.231.248.5:25,*,,attempting to connect
2013-09-06T21:08:45.092Z,internet,08D079499566A96B,1,192.168.111.40:63446,62.231.248.5:25,+,,
2013-09-06T21:08:45.810Z,internet,08D079499566A96A,14,192.168.111.40:63442,98.138.112.32:25,-,,Remote
2013-09-06T21:08:45.810Z,internet,08D079499566A96C,0,,98.138.112.34:25,*,,attempting to connect
2013-09-06T21:08:45.919Z,internet,08D079499566A96C,1,192.168.111.40:63449,98.138.112.34:25,+,,
2013-09-06T21:08:46.933Z,internet,08D079499566A96C,2,192.168.111.40:63449,98.138.112.34:25,<,220 mta1257.mail.ne1.yahoo.com ESMTP YSmtpProxy service ready,
2013-09-06T21:08:46.933Z,internet,08D079499566A96C,3,192.168.111.40:63449,98.138.112.34:25,>,EHLO mail.phoenixpower.co.om,
2013-09-06T21:08:47.323Z,internet,08D079499566A96C,4,192.168.111.40:63449,98.138.112.34:25,<,250-mta1257.mail.ne1.yahoo.com,
2013-09-06T21:08:47.323Z,internet,08D079499566A96C,5,192.168.111.40:63449,98.138.112.34:25,<,250-8BITMIME,
2013-09-06T21:08:47.323Z,internet,08D079499566A96C,6,192.168.111.40:63449,98.138.112.34:25,<,250 SIZE 41943040,
2013-09-06T21:08:47.323Z,internet,08D079499566A96C,7,192.168.111.40:63449,98.138.112.34:25,>,QUIT,
2013-09-06T21:08:47.698Z,internet,08D079499566A96C,8,192.168.111.40:63449,98.138.112.34:25,<,221 mta1257.mail.ne1.yahoo.com,
2013-09-06T21:08:47.698Z,internet,08D079499566A96C,9,192.168.111.40:63449,98.138.112.34:25,-,,Local
2013-09-06T21:11:55.194Z,internet,08D079499566A96B,2,192.168.111.40:63446,62.231.248.5:25,-,,Remote
2013-09-06T21:11:55.194Z,internet,08D079499566A96D,0,,62.231.248.2:25,*,,attempting to connect
2013-09-06T21:11:55.210Z,internet,08D079499566A96D,1,192.168.111.40:10800,62.231.248.2:25,+,,
2013-09-06T21:15:05.249Z,internet,08D079499566A96D,2,192.168.111.40:10800,62.231.248.2:25,-,,Remote

Answer 1

これは、送信コネクタの障害が原因である可能性があると示唆する人もいます。新しいコネクタを作成すると、問題が解決する場合があります。

http://www.networkadminsecrets.com/2010/04/421-and-451-exchange-2007-errors.html これを行うためのPowershellスクリプトを提供します。

New-SendConnector -Name ForceHelo -AddressSpaces problemdomain.com -ForceHELO $true

Exchange 2007で提案されているが、2010年に試す価値のある別の解決策は、ネットワークインターフェイスで自動調整を無効にすることです。

http://support.Microsoft.com/kb/951291/en-us コマンドを提供します（管理コマンドプロンプトから実行されます）：

netsh interface tcp set global autotuninglevel=disabled