带有文本和日历的多部分电子邮件:Outlook 无法识别 ics [英] Multipart email with text and calendar: Outlook doesn't recognize ics

问题描述

我在使用 Outlook 2007 时遇到问题.当发送带有文本/日历"部分的多部分/替代"电子邮件时，Outlook 会识别日历事件，这就是它必须的方式.但是当添加文本/纯文本"部分时，Outlook 只显示纯文本，缺少日历部分(但它存在于电子邮件的源代码中).

I have problems with Outlook 2007. When sending a "multipart/alternative" email with a "text/calendar" part, Outlook recognizes the calendar event, that's how it has to be. But when adding a "text/plain" part, Outlook only displays the plain text, the calendar part is missing (but it's present in the source code of the email).

源码如下:

[...]
Content-Type: multipart/alternative;
boundary="_=_swift_v4_138243630552664dd1bc83e_=_"

--_=_swift_v4_138243630552664dd1bc83e_=_
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

[...the plain message...]

--_=_swift_v4_138243630552664dd1bc83e_=_
Content-Type: text/calendar; charset=utf-8
Content-Transfer-Encoding: quoted-printable

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//GourmetPortal//NONSGML rr//DE
BEGIN:VEVENT
UID:res-Burkert
CREATED:20131030T113000Z
ORGANIZER;CN=3DSven Burkert:MAILTO:[...]
SUMMARY:[...]
DESCRIPTION:[...]
DTSTART:20131030T113000Z
END:VEVENT
END:VCALENDAR

--_=_swift_v4_138243630552664dd1bc83e_=_--

推荐答案

您在内容类型中都缺少 iTIP 方法:

You are missing the iTIP method, both in the content-type:

Content-Type: text/calendar; charset="utf-8"; method=REQUEST

以及作为 VCALENDAR 属性:

and as a VCALENDAR property as well:

BEGIN:VCALENDAR
VERSION:2.0
METHOD:REQUEST
PRODID:-//GourmetPortal//NONSGML rr//DE

该方法可能是 PUBLISH 或 REQUEST(在这种情况下，您还会错过一些 ATTENDEE 属性).

The method might be PUBLISH or REQUEST (in which case you also miss some ATTENDEE property).

然后，一些客户端在 multipart/alternative 中忽略了 iMIP，只将其视为附件，因此您可能需要尝试以下结构:

Then, some clients are ignoring iMIP in multipart/alternative and are looking only as attachments so you may need to try the following structure:

multipart/mixed
  multipart/alternative
    text/plain
    text/calendar;method=REQUEST
  text/calendar (with a content-disposition:attachment)

本质上，您添加了两次附件.来自google/yahoo日历和闪电的iMIP邀请就是这样的结构.

Essentially, you are adding the attachment twice. iMIP invitation from google/yahoo calendar and lightning have such a structure.

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