转发邮件太多到 outlook，被拒收了，大家有遇到这个问题吗

[amrnxcdt]

我有自己一个域名邮箱，托管在 yandex mail 上，收件都是任意前缀比如 [email protected] ，然后转发到个人版 outlook 里面。

这两天发现邮件少了很多，登录到 yandex 上看了一下，发现 yandex 转发的邮件被 outlook 拒收了。

outlook 拒收的回复是：
Action: failed
Status: 5.7.515
Remote-MTA: dns; outlook-com.olc.protection.outlook.com
Diagnostic-Code: smtp; 550 5.7.515 Access denied, sending domain
BANKOFCHINA.COM doesn't meet the required authentication level. The
sender's domain in the 5322.From address doesn't meet the authentication
requirements defined for the sender. To learn how to fix this see:
https://go.microsoft.com/fwlink/p/?linkid=2319303 Spf= Fail , Dkim= Pass ,
DMARC= Pass [TY4PR01MB15833.jpnprd01.prod.outlook.com
2025-07-10T09:54:47.521Z 08DDBDBB16D74A47]
[MW2PR2101CA0035.namprd21.prod.outlook.com 2025-07-10T09:54:47.572Z
08DDBF4CBAFA0A9A] [MWH0EPF000989E6.namprd02.prod.outlook.com
2025-07-10T09:54:47.581Z 08DDBF4953DF78C2]

文档的地址给出的发送方的解决方案，托管到服务商的大家有遇到、或者知道怎么解决吗？

结贴，确认了是微软新加的限制，参考上面日志给出的文档和下面的博文。

https://techcommunity.microsoft.com/blog/microsoftdefenderforoffice365blog/strengthening-email-ecosystem-outlook%E2%80%99s-new-requirements-for-high%E2%80%90volume-senders/4399730

用户侧是没法操作的，包括 4# 提出的白名单也不行，只能换其他邮箱代收。

[n2l]

https://imgur.com/a/EmOSPeG

[amrnxcdt]

@n2l #1 应该无关，这个是转发的邮件过不了 outlook 的反垃圾邮件策略，但是个人版找不到哪里设置，也没法控制发送域添加 dns 信息

[chen2016]

用 gmail 收，outlook 真的垃圾

[amrnxcdt]

我在 web 的 outlook 上修改了一个设置，现在貌似能正常接收邮件了，至少上面的 boc 的邮件能正常转发到 outlook 中。

修改的设置是：登录 web 版 outlook ，右上角齿轮进入设置界面，选“邮件”-“垃圾电子邮件”页面，找到“发件人”、“安全发件人和域”，“添加安全发件人”、把自己的 domain.com 填进去。

后续观察一下。

[Tianao]

BANKOFCHINA.COM. 300 IN TXT "v=spf1 a mx ip4:219.141.191.6 ip4:123.124.191.6 ip4:124.74.250.20 ip4:112.64.122.20 ip4:103.238.96.15 ip4:103.238.96.17 ip4:202.127.171.125 ip4:202.127.171.126 ip4:202.127.171.127 ip4:1.180.7.4 ip4:58.18.171.4 ip4:222.74.212.12 ip4:58.18.171.12 -all"

-all tells the server that addresses not listed in the SPF record are not authorized to send emails and should be rejected. BANKOFCHINA.COM 不允许他发出的邮件被路由式转发，使用路由式转发通常需要最终收件人强行忽略 Sender Policy Framework (SPF), 但 Outlook.com (楼主所说的个人版) 强制遵从 RFC 7208 (不允许收件人 opt-out).

Typically, the only modification that preserves DKIM is to add new email headers to the messages without touching the subject or the body of the message.
https://dmarc.org/wiki/FAQ#My_users_often_forward_their_emails_to_another_mailbox.2C_how_do_I_keep_DMARC_valid.3F

[amrnxcdt]

@amrnxcdt #4 这个应该是无效的选项。因为测试同一个域名，第一封被拦截，第二封可以，第三封又被拦截的情况。
@Tianao #5 应该是 outlook 的拦截器问题，因为 boc 这个地址寄出的邮件有过成功转发到 outlook 的例子，但是又不是每封都会拦截/放行。

这个是 yandex 的邮件头：
````
Received: from postback17a.mail.yandex.net (postback17a.mail.yandex.net [2a02:6b8:c0e:500:1:45:d181:da17])
by fbebzsja7lz3ffco.vla.yp-c.yandex.net (notsolitesrv/Yandex) with LMTPS id E23UrH2hKvK0-4qf4qQ7g
for <[email protected]>; Thu, 10 Jul 2025 14:00:33 +0300
Received: from mail-nwsmtp-mxfront-production-main-77.vla.yp-c.yandex.net (mail-nwsmtp-mxfront-production-main-77.vla.yp-c.yandex.net [IPv6:2a02:6b8:c1f:5e89:0:640:7435:0])
by postback17a.mail.yandex.net (Yandex) with ESMTPS id 14A9B609E9
for <[email protected]>; Thu, 10 Jul 2025 14:00:33 +0300 (MSK)
Received: from bocmg.boc.cn (mx4.bankofchina.com [219.141.191.6])
by mail-nwsmtp-mxfront-production-main-77.vla.yp-c.yandex.net (mxfront/Yandex) with ESMTPS id Q0hSgYAFH4Y0-9VTC7VGY;
Thu, 10 Jul 2025 14:00:29 +0300
X-Yandex-Fwd: 1
Authentication-Results: mail-nwsmtp-mxfront-production-main-77.vla.yp-c.yandex.net; spf=pass (mail-nwsmtp-mxfront-production-main-77.vla.yp-c.yandex.net: domain of bankofchina.com designates 219.141.191.6 as permitted sender, rule=[ip4:219.141.191.6]) [email protected]; dkim=pass [email protected]
X-Yandex-Spam: 1
Received: from bocmg.boc.cn (unknown [127.0.0.1])
by IMSVA (Postfix) with ESMTP id 64E5063CDE
for <[email protected]>; Thu, 10 Jul 2025 19:00:25 +0800 (CST)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=bankofchina.com;
s=mail2; t=1752145225;
bh=a2B0ff5lOgIxI7T8UYsXxhdCvQ/vyH5c+CBe67nccIA=; h=From;
b=PcUZZainFM9LcGziMNdrB7LKhRXym9d1g1EraTZcrwwQCnhQtR1lSvldAJquu45Lt
eBOazTwW66Hsawq8SWwJHaUz2jLkKeGONbNzWLQ0zChPaIWjLum2/XVI6r1IOg/vzA
8283fVApJkRZk1P1ZdwdsYgSM3/AG/xQvVWmjcF9mxDuWSXyfMUL2Vj2L804YDokuA
M813pU5HypoolQjaqfb6PO+tP48SeNxWLkNoN8Npr0GZp0SRLf8xTfn7zxPqwr3w6M
afu56ZxPx1s1LAHCC3W+atDlaYzlz/vMNZDWheHkDFC9tQl3f819HTw/KpHDqADMVF
m8tzXdIvEuq3A==
Received: from bocmg.boc.cn (unknown [127.0.0.1])
by IMSVA (Postfix) with ESMTP id 4908363CDC
for <[email protected]>; Thu, 10 Jul 2025 19:00:25 +0800 (CST)
Received: from P1BCSPPL01 (unknown [21.124.190.66])
by bocmg.boc.cn (Postfix) with ESMTP
for <[email protected]>; Thu, 10 Jul 2025 19:00:25 +0800 (CST)
Message-ID: <2069778417.1752145225248.JavaMail.bcsp@P1BCSPPL01>
Date: Thu, 10 Jul 2025 19:00:25 +0800 (CST)
From: [email protected]
To: [email protected]
Subject: =?GBK?B?1tC5+tL40NDQxdPDv6i159fT1cu1pQ==?=
MIME-Version: 1.0
Content-Type: multipart/mixed;
boundary="----=_Part_23425685_670355975.1752145225248"
Return-Path: [email protected]
X-Yandex-Forward: e8261cefa706a7538911b4c26e23e60d
````

这个是成功转发到 outlook 时候的邮件头：
````
Received: from TYCPR01MB6495.jpnprd01.prod.outlook.com (2603:1096:400:92::11)
by TYYPR01MB14050.jpnprd01.prod.outlook.com with HTTPS; Thu, 10 Jul 2025
11:00:41 +0000
Received: from BY3PR04CA0001.namprd04.prod.outlook.com (2603:10b6:a03:217::6)
by TYCPR01MB6495.jpnprd01.prod.outlook.com (2603:1096:400:92::11) with
Microsoft SMTP Server (version=TLS1_2,
cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8901.23; Thu, 10 Jul
2025 11:00:38 +0000
Received: from CO1PEPF000075EF.namprd03.prod.outlook.com
(2603:10b6:a03:217:cafe::91) by BY3PR04CA0001.outlook.office365.com
(2603:10b6:a03:217::6) with Microsoft SMTP Server (version=TLS1_3,
cipher=TLS_AES_256_GCM_SHA384) id 15.20.8922.22 via Frontend Transport; Thu,
10 Jul 2025 11:00:37 +0000
Authentication-Results: spf=neutral (sender IP is 178.154.239.84)
smtp.mailfrom=domain.com; dkim=timeout (key query timeout)
header.d=bankofchina.com;dmarc=temperror action=none
header.from=bankofchina.com;
Received-SPF: Neutral (protection.outlook.com: 178.154.239.84 is neither
permitted nor denied by domain of domain.com)
Received: from forward101a.mail.yandex.net (178.154.239.84) by
CO1PEPF000075EF.mail.protection.outlook.com (10.167.249.38) with Microsoft
SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8922.22
via Frontend Transport; Thu, 10 Jul 2025 11:00:35 +0000
X-IncomingTopHeaderMarker: OriginalChecksum:41119ADA848909DB5DEC2FEFE2A3B4C3041EE1FFCA6902937C377AD2AB79B743;UpperCasedChecksum:CC8ED058EE93780C6EDA8658CF795D05F07CE7CB038650B3DB1C56BBEC83BC9D;SizeAsReceived:2875;Count:19
Received: from mail-nwsmtp-mxback-production-main-47.vla.yp-c.yandex.net (mail-nwsmtp-mxback-production-main-47.vla.yp-c.yandex.net [IPv6:2a02:6b8:c2d:3326:0:640:3348:0])
by forward101a.mail.yandex.net (Yandex) with ESMTPS id 1502E60EDA
for <[email protected]>; Thu, 10 Jul 2025 14:00:34 +0300 (MSK)
Received: from 2a02:6b8:c2d:2426:0:640:15f1:0 (2a02:6b8:c2d:2426:0:640:15f1:0 [2a02:6b8:c2d:2426:0:640:15f1:0])
by mail-nwsmtp-mxback-production-main-47.vla.yp-c.yandex.net (mxback/Yandex) with HTTPS id H0hvgF4MYCg0-mNWsssmC;
Thu, 10 Jul 2025 14:00:33 +0300
X-Yandex-Fwd: 2
Authentication-Results-Original: mail-nwsmtp-mxback-production-main-47.vla.yp-c.yandex.net; dkim=pass
[email protected]
Received: from postback17a.mail.yandex.net (postback17a.mail.yandex.net [2a02:6b8:c0e:500:1:45:d181:da17])
by fbebzsja7lz3ffco.vla.yp-c.yandex.net (notsolitesrv/Yandex) with LMTPS id E23UrH2hKvK0-4qf4qQ7g
for <[email protected]>; Thu, 10 Jul 2025 14:00:33 +0300
Received: from mail-nwsmtp-mxfront-production-main-77.vla.yp-c.yandex.net (mail-nwsmtp-mxfront-production-main-77.vla.yp-c.yandex.net [IPv6:2a02:6b8:c1f:5e89:0:640:7435:0])
by postback17a.mail.yandex.net (Yandex) with ESMTPS id 14A9B609E9
for <[email protected]>; Thu, 10 Jul 2025 14:00:33 +0300 (MSK)
Received: from bocmg.boc.cn (mx4.bankofchina.com [219.141.191.6])
by mail-nwsmtp-mxfront-production-main-77.vla.yp-c.yandex.net (mxfront/Yandex) with ESMTPS id Q0hSgYAFH4Y0-9VTC7VGY;
Thu, 10 Jul 2025 14:00:29 +0300
Received: from bocmg.boc.cn (unknown [127.0.0.1])
by IMSVA (Postfix) with ESMTP id 64E5063CDE
for <[email protected]>; Thu, 10 Jul 2025 19:00:25 +0800 (CST)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=bankofchina.com;
s=mail2; t=1752145225;
bh=a2B0ff5lOgIxI7T8UYsXxhdCvQ/vyH5c+CBe67nccIA=; h=From;
b=PcUZZainFM9LcGziMNdrB7LKhRXym9d1g1EraTZcrwwQCnhQtR1lSvldAJquu45Lt
eBOazTwW66Hsawq8SWwJHaUz2jLkKeGONbNzWLQ0zChPaIWjLum2/XVI6r1IOg/vzA
8283fVApJkRZk1P1ZdwdsYgSM3/AG/xQvVWmjcF9mxDuWSXyfMUL2Vj2L804YDokuA
M813pU5HypoolQjaqfb6PO+tP48SeNxWLkNoN8Npr0GZp0SRLf8xTfn7zxPqwr3w6M
afu56ZxPx1s1LAHCC3W+atDlaYzlz/vMNZDWheHkDFC9tQl3f819HTw/KpHDqADMVF
m8tzXdIvEuq3A==
Received: from bocmg.boc.cn (unknown [127.0.0.1])
by IMSVA (Postfix) with ESMTP id 4908363CDC
for <[email protected]>; Thu, 10 Jul 2025 19:00:25 +0800 (CST)
Received: from P1BCSPPL01 (unknown [21.124.190.66])
by bocmg.boc.cn (Postfix) with ESMTP
for <[email protected]>; Thu, 10 Jul 2025 19:00:25 +0800 (CST)
Message-ID: <2069778417.1752145225248.JavaMail.bcsp@P1BCSPPL01>
Date: Thu, 10 Jul 2025 19:00:25 +0800
From: [email protected]
To: <[email protected]>
Subject: =?GBK?B?1tC5+tL40NDQxdPDv6i159fT1cu1pQ==?=
Content-Type: multipart/mixed;
boundary="----=_Part_23425685_670355975.1752145225248"
X-Yandex-Forward: e8261cefa706a7538911b4c26e23e60d
````