带有Yahoo邮件附件的电子邮件不会传递到我们的交换邮箱或收到很多延迟。更大的附件后来交付。具有10MB附件的电子邮件根本不提供和“失败通知”消息出现在雅虎邮箱。 接收连接器的最大尺寸设置为15MB，并从Gmail发送相同的电子邮件成功传递到我们的邮箱。 分析交付的雅虎邮件的标题显示，内部雅虎服务器之间发生延迟：
Received: from edge.mydomain.com (...) by hubtransport.mydomain.com (...) with Microsoft SMTP Server (TLS) id 14.3.361.1; Tue, 17 Oct 2017 09:46:19 +0330 Received: from sonic301-2.consmr.mail.bf2.yahoo.com (74.6.129.41) by edge.mydomain.com (...) with Microsoft SMTP Server id 14.1.438.0; Tue, 17 Oct 2017 09:42:10 +0330 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1508220732; bh=bksjW5TROZcxTvYHCLqUYpF9HOWQ9JF0oMeKW5qc+uY=; h=Date:From:Reply-To:To:In-Reply-To:References:Subject:From:Subject; b=phTCEcma9Zp3i5o5U3hPunGTiqrIBBn8vXKX8XV847eQ/YYbxaqNQ6in+hTiiB4nepTLME7idDYC52Jo/1Yu3o3MmCebT849+/6bq32hmB9ynTiWdqcWAEKhXLmXSlammDKB0shbHG26rC7VX840V2NtxKLB5QMLYxgHbgCVgh5gFaPsd6yP1Pz0XLIwI59n619lDrtHQYcAW2ghtTukh3I2UMByuteAJKYC/d/eq8eoayen14xMgcc/J08osx4MAtcLPl5PenXzBQpTf+hgUljqixKjKiBVZ1+D8OtVRwrD7qT13pj95YOPJHqr3Sjs28uLaaL1HZdbu9f9PTZQSw== X-YMail-OSG: bPRSVbgVM1mj9nLbjTnKbn5kHc._OmtaBeC0DmqQFJdYlBvKo1Z1LJj7IM28zQs F0grQ1hFHudHa_8YL.jM.3gxQjhZq45uEbgAYQE1QOyOZgijZuRWYwqFKseJ1koAiJMvByg_810l CdN.03xyqzjrg90iYKGQQFlQDS3R2sVT5Emo4o30_6qD..FEKvVAFLLHpNXMKjQLxxljH03MRdWk 0Kq9PYqzhHe1s50rA.ldANwdftqBEDnpJzUiirf..iYYgpBtV8kxSXtMkqnE5jF5YnbgZGudTrVj cTCBDAQAfDyixUpmj0sB9VHdU6Kenec6fkqmwJGfoZj4_U4l_brm30KxU9DItRSoKYg9Ypr.trIA 7BThj_iBPzWpK4XVT_FytNOr5GINp_FaUTYlj.EqsTgfEPQ6Pf3TtIgmqvs.AjCdAKT4_ciz2..Q Kz6T8hAxAbbetbGTPCPwMdtFw41s3sXu62tj6Jeoffh.Q2Fu.YlM8cewZOM86Xz.0.dkLUNPAEEs - Received: from sonic.gate.mail.ne1.yahoo.com by sonic301.consmr.mail.bf2.yahoo.com with HTTP; Tue, 17 Oct 2017 06:12:12 +0000 Date: Tue, 17 Oct 2017 06:00:02 +0000 From: test <[email protected]> To: =?UTF-8?B?2YbbjNmF2Kcg2LTYp9uM2YI=?= <[email protected]> Message-ID: <[email protected]> Subject: 929 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_322010_1330634417.1508220003126" X-Mailer: WebService/1.1.10774 YahooMailNeo Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0 Content-Length: 5861292 Return-Path: [email protected] X-MS-Exchange-Organization-PRD: yahoo.com Received-SPF: Pass (...) client-ip=74.6.129.41; helo=sonic301-2.consmr.mail.bf2.yahoo.com; X-MS-Exchange-Organization-PCL: 2 X-MS-Exchange-Organization-Antispam-Report: DV:3.3.16312.857;SID:SenderIDStatus Pass;OrigIP:74.6.129.41 X-MS-Exchange-Organization-SCL: 0 X-MS-Exchange-Organization-SenderIdResult: PASS X-MS-Exchange-Organization-AuthSource: edg.mydomain.com X-MS-Exchange-Organization-AuthAs: Anonymous 请注意“date”标题，并延迟接收来自sonic.gate.mail.ne1.yahoo.com的电子邮件到sonic301.consmr.mail.bf2.yahoo.com，并在“已收到”标题中使用HTTP约12分钟。 显然，从雅虎发送电子邮件到Gmail不会遭受这样的问题，但不同的内部雅虎服务器正在使用。
更新： Blow是返回给雅虎邮箱的“失败通知”电子邮件：
X-Apparently-To: [email protected]; Tue, 17 Oct 2017 10:39:58 +0000 Return-Path: <> Received-SPF: none (domain of sonic309-13.consmr.mail.bf2.yahoo.com does not designate permitted sender hosts) X-YMailISG: EyD_Pj4WLDvW5UziFeMPpsIVOtNXaMd1k80he9MFvw2jTbMD FQ.Ct3tOPTQH7kF9.y7CKUy2tg5OEiKv4wau.h2wfsQFnFYxArH9Y8hGnNp6 m1_shZNNK9bkroRxhmCZEOP5Q.z3dbT97ypq048LwaYKcXENkKtpO8WSScSU 7EqB1A7ZYvX37Yj8G8AsItNSbd_G34wpB9zEgTvrZfr4G6LN6UjhT71Cd15I C.CgBJKXCHsANyNlzghnA4L59Jz5FULsMK8EKDN4b8HE0emYJh4jgR0sgr.R _D0MXr2aYJhgwTiEHeRYWaEX_3Q1RlxAkSMOFcG6c1VOFdSY1uYiJLX0yASD eSnrFiLilvIZGjmf3JNPK1n1pYbsw4.0eiyOVWx9.bRMVeWFKAyp767BvdT. efrKX1rLQ9geOldqyq0QhvlHf4ua4WLew13h7oNz.UftMTj.kbb1FSIcli5V QLMXPA6dcAMWA4bb9kCJxs7fwFK7yce_dEJoBtmqINi8Zbtgbvte40qvOtP8 4XYSffz3F2ZF8N7uqRFOI7Ve77Qg0ro5joiXZK0ssex6qxu9ckRpHM95GU0B OhcGvTnYMomCii2hrK1IqG4ELjTou9M9fGR4XTmFQEqtSr3lqOjURS0Hjwbk nSqpNDmt3TEs2xmXtH1L92gfBEMiT_V34R6j0076MXly59YTEsFVpKZGggy4 m3kfHdNxs2yrH3VV.6Q8tGqm6D5AplLKHlpkmzpTuPZHUZgM.rwbDSvADG1A cyg5IlpD63Fd4j_.dKUlp290xY7ti_yYJdCve6uLihiujxmcQ0yW9L688I34 4ew.E1X_cbzkhCx7XfVCFkLgZRf.VGyQNOlBlN2kKogb8_5qwiDIa.S8zwqZ .bUo7c6CfHlbH81gHDAAdIkCT8IBnrcIUwf7fhrKwhevrn.4hd0kpFGOf9YN M3gE70lzayzkZLnw12Z7WgSI56PMkdI_7cVBs5nk4HBbhfG8Y77AVYokSNnB 4pg3KaJ2xIb0uVkdGKata4CdVkxaYC3OltXUGKlCfVeQTitPbd10nskVAXxD pfxNeGG592s5t2rkIpK87WvhSXsDqvCei5qtRMyzCsTCKtIootgfxHjJQxAR kpjm2UT0xNFbQ7Txn3Xalb.y8yQhIN1mXTs6koaTvd5AiUCQTZhv8drvfueR qW6ldJ2Cjn60_VnRAPf_9X9ZB8ouG8XTj7R3SKw1XpN_8iB0MF21Z2kCV.M0 D6nW7vE_cfwxRRlZCtPdQxkCra0BkX63RuCxNIKWVsH3AG2K7arHEacYRPi_ oXJ1bSubccNmrMxJfXxpSQEZqy51CifFwXoqkf6sYulnu6vrtz1xCriuBLkS X-Originating-IP: [74.6.129.123] Authentication-Results: mta1038.mail.gq1.yahoo.com from=yahoo.com; domainkeys=neutral (no sig); from=yahoo.com; dkim=pass (ok) Received: from 127.0.0.1 (EHLO sonic309-13.consmr.mail.bf2.yahoo.com) (74.6.129.123) by mta1038.mail.gq1.yahoo.com with SMTPS; Tue, 17 Oct 2017 10:39:58 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=bounce; t=1508236797; bh=HBViP8ksLRRBMVsngkSc1xd9E7HF0hs0Z7TUk1trgs0=; h=Date:From:To:Subject:From:Subject; b=Akywhnxfnu7B79RDSgA6WFjQAKR1xM5sCfUQ/swEFWkRRcHife7JjAYE6FZT8Tc006bo4d3jHb5AVyDGoyEmTyp6An/Hm6+WhaZHDrmYfpaUZCe+w4AP2YtpT6Mr8gpcmCqQyYBHlWhxgPVX7umjai7rPt4xpIuNqi6TRplB2m4= Received: from sonic.gate.mail.ne1.yahoo.com by sonic309.consmr.mail.bf2.yahoo.com with HTTP; Tue, 17 Oct 2017 10:39:57 +0000 Date: Tue, 17 Oct 2017 10:39:57 +0000 From: [email protected] To: [email protected] Message-ID: <829224876.370562.1508236797219@sonic309.consmr.mail.bf2.yahoo.com> Subject: Failure Notice MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Length: 30563 Sorry, we were unable to deliver your message to the following address. <[email protected]>: Unable to deliver message after multiple retries, giving up. --- Below this line is a copy of the message. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1508236495; bh=05+txvVD/0X1C1jzEbs51ITk3qlI/U56iABbC6omHQc=; h=Date:From:To:In-Reply-To:References:Subject:From:Subject; b=mDp0ROYHIb64wmkZedr5AJ5Tr+D0DBAlQ8E2oW5ZO7V/BzqYof89/le/xR4xdUiRCMCJ0fDKNFFcs54nsgCt/QJ092SpLvkvBoFP37Y5TU0OWOH7M8zmoIAcyfYLQyC9HReYaWgcwkWyD6d70AXwOyE93ReApl46xo3+/ocm8zugO7T5RqtrsQmK5Ufr0GKo7scE6q9K0Crfcdke2FX3xQ55Xctr/JW4R+5KUgmw4iKZzOmlvz7XTj4baSp5fkNURkKkjViihYyZnjzdu2Wdi4mZaLMxFWmaTy3aUBOtvptJTG18if3zNcqCtWmQQEsyU4wTRGd/p8hfCygb0cly2g== X-YMail-OSG: 8U.aQjsVM1nQWEX9W4_6faDyxdY3HwSgCPyG5deJnM2q5PD8vG8Dz6FJPMm4gVa fNvkk6oB8kwLRbFQ98skbWm2v5zzaEbRehoj7fEZtylioWiy4D13HNYIdX42sY.OXj1K5jRkFGiw IW56WSiD652kP.yuOzuNE5_mADT5Bry4g.M_Lhfpsg42.hTW0xsYAyFac0UWeLTUy6tLjWBSaLbb lGcyjCeGY58ifsKrc8zNfiZsdHiYt35.XT8oBiMEKppl6KUpTXfnthUTqmb1ZrcIJyTDPs4xYqna REbEHPqyBSgAUa8dScrwFvcdrQfshXmiIEfU.Wd35A4OKVZYZxzDnQ8TuK5ttXpigMwna7bq_tvZ DncMPlWs7PuVcBdrDLkW2ID0_8U5eRsXz6yzTVkwSQYFppDOlxxoQiHLx9b5dbNP76OShzk8hhO3 nwe8cn.EN_Q.RMkN4HlajXaGziE.7SH5XPurm.NXGkHm_Zdxz17O0JAj86Wg- Received: from sonic.gate.mail.ne1.yahoo.com by sonic309.consmr.mail.bf2.yahoo.com with HTTP; Tue, 17 Oct 2017 10:34:55 +0000 Date: Tue, 17 Oct 2017 07:36:05 +0000 (UTC) From: test <[email protected]> To: =?UTF-8?B?2KzZiNin2K8g2LTYudin2LnbjA==?= <[email protected]> Message-ID: <[email protected]> In-Reply-To: <[email protected]> References: <[email protected]> <[email protected]> Subject: Fw: scasdfddd MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_351575_1109119668.1508225766737" X-Mailer: WebService/1.1.10774 YMailNorrin Mozilla/5.0 (Windows NT 6.3; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0 Content-Length: 11219432 ------=_Part_351575_1109119668.1508225766737 Content-Type: multipart/alternative; boundary="----=_Part_351568_178096500.1508225765923" ------=_Part_351568_178096500.1508225765923 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ----- Forwarded Message ----- From: test <[email protected]>To: = =D8=AC=D9=88=D8=A7=D8=AF =D8=B4=D8=B9=D8=A7=D8=B9=DB=8C <[email protected]> Sent: Tuesday, October 17, 2017, 9:25:08 AM GMT+3:30Subject: scasdfddd dfdsfsffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff =20 ------=_Part_351568_178096500.1508225765923 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <html><head></head><body><div style=3D"font-family:Helvetica Neue, Helvetic= a, Arial, sans-serif;font-size:13px;"><div></div> <div>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<br></div><div><br></div> =20 <div id=3D"ydp23e139d9yahoo_quoted_8242600409" class=3D"ydp23e1= 39d9yahoo_quoted"> <div style=3D"font-family:'Helvetica Neue', Helvetica, Aria= l, sans-serif;font-size:13px;color:#26282a;"> <div>----- Forwarded Message -----</div> <div><b>From:</b> test <[email protected]>= ;</div><div><b>To:</b> =D8=AC=D9=88=D8=A7=D8=AF =D8=B4=D8=B9=D8=A7=D8=B9=DB= =8C <[email protected]></div><div><b>Sent:</b> Tuesday, October 17,= 2017, 9:25:08 AM GMT+3:30</div><div><b>Subject:</b> scasdfddd</div><div><b= r></div> <div><div style=3D"font-family:Helvetica Neue, Helvetic= a, Arial, sans-serif;font-size:13px;"><div>dfdsfsffffffffffffffffffffffffff= ffffffffffffffffffffffffffffffffffffff<br></div></div></div> </div> </div></div></body></html> ------=_Part_351568_178096500.1508225765923-- ------=_Part_351575_1109119668.1508225766737 Content-Type: application/pdf Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="Microsoft Lync Server 2013 Step by Step for Anyone_REV014.pdf" Content-ID: <[email protected]> JVBERi0xLjUNJeLjz9MNCjU5NjcgMCBvYmoNPDwvTGluZWFyaXplZCAxL0wgODMwMzY2Mi9PIDU5 NjkvRSAxOTUzMzkvTiAyNTgvVCA4MzAwMTU2L0ggWyA1MjMgMjM2NF0+Pg1lbmRvYmoNICAgICAg DQo1OTg3IDAgb2JqDTw8L0RlY29kZVBhcm1zPDwvQ29sdW1ucyA1L1ByZWRpY3RvciAxMj4+L0Zp bHRlci9GbGF0ZURlY29kZS9JRFs8QkUyODQxNEY3MkFBMzE0M0EzRkEyOTZENUY2NTMxMkU+PEY3 NDA0MERBMjZGNzVCNERBOTc0QTBFMTNENzI3NkMzPl0vSW5kZXhbNTk2NyAyOV0vSW5mbyA1OTY2 IDAgUi9MZW5ndGggMTA4L1ByZXYgODMwMDE1Ny9Sb290IDU5NjggMCBSL1NpemUgNTk5Ni9UeXBl L1hSZWYvV1sxIDMgMV0+PnN0cmVhbQ0KaN5iYmRgEGBgYmDgNgeRDE0gkmkLiGReACJZVEDkxHlA kilXFsRm/A9WEwoipQJApM4+sIg7iGTVBKvhApFiJ8EiRSBSIBtEZr0Ay4oAyX/svxiYGBnE74Ht ZWAkQP5neL3zF0CAAQA49BFJDQplbmRzdHJlYW0NZW5kb2JqDXN0YXJ0eHJlZg0KMA0KJSVFT0YN CiAgICAgICANCjU5OTUgMCBvYmoNPDwvQyAzNDkyL0ZpbHRlci9GbGF0ZURlY29kZS9JIDM1MTgv TGVuZ3RoIDIyNzAvUyAzMzY2Pj5zdHJlYW0NCmje7FdvUFPZFb8vL3lESDJ5ITjwRBcCyJ9xMTQk Im01mAdEZd0IhA1ZWUlFeAI7VQuIzq5zkQSfrFvZWTWAu/WBgIFRh1ra8c/UJSOrO647VasodmaX 0u00dNotbv3U3XZ77gu0O/3ar5vc3HvuOb9zzu+c+17mPYSQEiHF22RW/wAZ0H8/BtAx8FPPIgpR [remainder of message body omitted; too large]
问题与雅虎内部服务器相关， 这里讨论这个问题 。 也许他们会对服务器进行一些更改，因为现在只有带有附件的电子邮件才会遇到这样的问题，而不是全部。