我使用SendGridMessage.DeliverAsync通过发送网格发送电子邮件。电子邮件到达大约需要20分钟。我粘贴在收件人收到的电子邮件的标题信息下面。所有公司信息都被虚构数据所取代：
Return-path: <bounces+1776648-b90d-rec=example.com@sendgrid.me>
Envelope-to: rec@example.com
Delivery-date: Wed, 27 May 2015 15:48:53 -0400
Received: from o1.f.az.sendgrid.net ([208.117.55.132]:22426)
by server37.web-hosting.com with esmtps (UNKNOWN:DHE-RSA-AES128-GCM-SHA256:128)
(Exim 4.82)
(envelope-from <bounces+1776648-b90d-rec=example.com@sendgrid.me>)
id 1YxhJt-003sMA-8G
for rec@example.com; Wed, 27 May 2015 15:48:53 -0400
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sendgrid.me;
h=content-type:mime-version:from:to:subject; s=smtpapi;
bh=e8YGVEGwW8wzxqhpuiTstqZPRIs=; b=MLyTlQTi5Y4eOlmcNk65t0Fqv+8cp
WoAtekeb+ld1HBI1kk4CQ1ycmJ7LP6r/ZJKI0+0+fwy0hsO5F7ywT7twv6t9Z/M2
BYxCuE5heMWP5tjyIkfJYjIDf8fT3OM43bq30+NC69GQWJFr+CHn2ms/OgmSahvD
PhQ71p1yBFagxY=
Received: by filter-403.sjc1.sendgrid.net with SMTP id filter-403.17268.55661A831A
2015-05-27 19:27:00.592426035 +0000 UTC
Received: from MTc3NjY0OA (unknown [23.97.229.110])
by ismtpd-004 (SG) with HTTP id 14d96d793b7.30c5.15e6fe
Wed, 27 May 2015 19:27:00 +0000 (UTC)
Content-Type: multipart/alternative;
boundary="===============1502686111627047378=="
MIME-Version: 1.0
From: Example Support <admin@example.com>
To: Rec Martel <rec@example.com>
Subject: Thank you for Signing up with Example!
Message-ID: <14d96d793b7.30c5.15e6fe@ismtpd-004>
Date: Wed, 27 May 2015 19:27:12 +0000 (UTC)
X-SG-EID: IASZyfUggCe5SBfFgEPkfXBDb6ZCY09R57ALGWkRenTMTMZdvb6XDq63Z6REVqqqqh1THbQI2y+Su7
fi7CkNm41AX9xYJayZj7L4Nq9kdKIQjkQVy89oVT4OWeRVj/QSAmE5TEgSMY+XRBmQ/JygwCuz1U6r
eB7+RE6w3Aht84U=
X-From-Rewrite: unmodified, no actual sender determined from check mail permissions
任何人都可以告诉我为什么会发生延迟，我该如何解决？
此致 Zawar
答案 0 :(得分：1)
如果您在过去一小时内遇到此问题（根据您的问题时间戳），可能是因为Sendgrid目前遇到的serious outage导致约60分钟。在某些情况下，电子邮件会延迟。