Email 电子邮件550 5.4.1从Sendgrid到Outlook的访问被拒绝

我在网上看到，5505.4.1可能会生成，因为它被垃圾邮件过滤器捕获

我已经创建了一个outlook电子邮件帐户，并在该地址上发送了一个邀请，实际上，它会直接发送到垃圾邮件

这些是我收到的邮件头，显然是SPF、DKIM、DMAR的全部通行证。我甚至从sendgrid购买了一个专用IP地址

以下是标题：

Received: from BN8NAM11HT158.eop-nam11.prod.protection.outlook.com (2603:10a6:800:a9::31) by VI1PR0801MB1886.eurprd08.prod.outlook.com with HTTPS via VI1PR0802CA0045.EURPRD08.PROD.OUTLOOK.COM; 
Tue, 21 Jan 2020 07:48:23 +0000 Received: from BN8NAM11FT005.eop-nam11.prod.protection.outlook.com (10.13.176.58) by BN8NAM11HT158.eop-nam11.prod.protection.outlook.com (10.13.177.72) with 
  Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2644.19; Tue, 21 Jan 2020 07:48:22 +0000 
Authentication-Results: spf=pass (sender IP is 149.72.250.81) smtp.mailfrom=em8248.skillview.ro; outlook.com; dkim=pass (signature was verified) 
header.d=skillview.ro;outlook.com; dmarc=pass action=none header.from=skillview.ro;compauth=pass reason=100 Received-SPF: Pass (protection.outlook.com: 
domain of em8248.skillview.ro designates 149.72.250.81 as permitted sender) receiver=protection.outlook.com; client-ip=149.72.250.81; helo=o1.ptr8970.skillview.ro; 
Received: from o1.ptr8970.skillview.ro (149.72.250.81) by BN8NAM11FT005.mail.protection.outlook.com (10.13.176.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) 
id 15.20.2644.19 via Frontend Transport; Tue, 21 Jan 2020 07:48:22 +0000 X-IncomingTopHeaderMarker: OriginalChecksum:518E1F322A9D24D803C47D04D789A948CD07D19BF81F19641CAFA9AC08DA6FA2;
UpperCasedChecksum:F295CE06F5789AB0D796E5CAE0A23BD30CFF76F5FBDB6CC2301F77FDAEEEB5B3;SizeAsReceived:1847;Count:13 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=skillview.ro; 
h=content-type:from:mime-version:subject:reply-to:to; s=002; bh=QqKCQZ/Lv+adriYUtFsPJaDhuYaF8ejiRHSEFhAAxCU=; b=M4gKhkkvPTooQJqFAbWCAByFhukJck2FNSkFyTORerRaCWG0lEmRi35yYFBHVKBKfGAa 
Wg5mZUUnwtwkgrTe+x7w7wdn206qR/G1D388RK9RoH0yqvkReBksWUdUmRhiZmRrta2rGj oacH4tp5+gU8qJE2a317J7EKfU2Ok5IHc= Received: by filterdrecv-p3iad2-57f487d66-lptsx with SMTP id 
filterdrecv-p3iad2-57f487d66-lptsx-18-5E26ACC4-2F 2020-01-21 07:48:20.846372216 +0000 UTC m=+3049301.982657143 Received: from MTMxODkzNTc (unknown [35.198.174.84]) by 
ismtpd0001p1lon1.sendgrid.net (SG) with HTTP id IKIWJambQ_u61Cz3Nl_Csw Tue, 21 Jan 2020 07:48:20.647 +0000 (UTC) Content-Type: multipart/alternative; 
boundary=298503ba6294e085a83131e41dd14286505499f3f09cd2ecd0ef7964894b


Date: Tue, 21 Jan 2020 07:48:20 +0000 (UTC)

我还可以做些什么来防止我的事务性电子邮件变成垃圾邮件。 这个问题甚至更糟糕，因为我们有一个客户（一家公司）正在使用outlook作为电子邮件提供商，而这些电子邮件被一些垃圾邮件过滤器捕获，而它无法到达它们。

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有人能帮我吗？

你的问题还在吗？我也遇到了同样的问题，我找到的解决办法之一就是等一会儿。