我发现一些电子邮件有标题:
Received: by 10.112.172.99 with SMTP id bb3csp690725lbc; Fri, 8 Jan 2016 11:37:33 -0800 (PST) X-Received: by 10.55.15.139 with SMTP id 11mr615164qkp.50.1452281853620; Fri, 08 Jan 2016 11:37:33 -0800 (PST) Return-Path: <0000015222be70c9-0079c50c-5c19-41ad-b815-86502cf31b8d-000000@amazonses.com> Received: from a10-119.smtp-out.amazonses.com (a10-119.smtp-out.amazonses.com. [54.240.10.119]) by mx.google.com with ESMTPS id n66si46826200qgn.37.2016.01.08.11.37.33 for <[email protected]> (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 08 Jan 2016 11:37:33 -0800 (PST) Received-SPF: pass (google.com: domain of 0000015222be70c9-0079c50c-5c19-41ad-b815-86502cf31b8d-000000@amazonses.com designates 54.240.10.119 as permitted sender) client-ip=54.240.10.119; Authentication-Results: mx.google.com; spf=pass (google.com: domain of 0000015222be70c9-0079c50c-5c19-41ad-b815-86502cf31b8d-000000@amazonses.com designates 54.240.10.119 as permitted sender) smtp.mailfrom=0000015222be70c9-0079c50c-5c19-41ad-b815-86502cf31b8d-000000@amazonses.com; dkim=pass [email protected]; dkim=pass [email protected] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=dnkypy6vrtp6eik6p2aszn3t5yznsvsj; d=coursera.org; t=1452281852; h=From:To:Subject:MIME-Version:Content-Type:Message-ID:Date; bh=snqI6rZAfMBFxbdRju6FEq8tdt1dUOHybmXwIYisQFk=; b=D5ApCCMIfK9+5tiyrqpz6B8RxkFCxoEPcEAD1evkb6SLp5jnAcb0GmX9Ilutyvqh kow+9hT0tuV6IV2Ut04wSsYsS9NPBBXo/3lK01LPZSts8DhrVCFT7dR9fVc81A3loYb NPNvADua/8zh8YW05e4kCi1UpsY9gwPOktkR26Is= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug; d=amazonses.com; t=1452281852; h=From:To:Subject:MIME-Version:Content-Type:Message-ID:Date:Feedback-ID; bh=snqI6rZAfMBFxbdRju6FEq8tdt1dUOHybmXwIYisQFk=; b=rnQ25/ZPUfxen9gy6MfaPwYtk1qJR1S3EwkSZWR7UGgEr+UTwGhhnKz/6SogAYs4 aOu5sUR4FcFaPVkeTboyytx1wkXmoVXlXhnlsTbUw8xLKQTFpRRaVV+F7m52Gf95lkz FbKuBa+qARfhM/zE4VO7c/oIxBGpqNselpeY5qcY=
DKIMlogin:
dkim =通过[email protected]
dkim =通过[email protected]
我的邮件服务器图: 
如何在原始服务器和中继服务器上的所有邮件上部署图示DKIM?
如果您控制它,您可以在发送邮件服务器上设置DKIM。 这取决于你正在使用的邮件服务器。 使用后缀,您可以设置一个opendkim milter将头部注入外发电子邮件。