问题描述
我们发送给用餐者的电子邮件包含 json-ld 架构，看起来 gmail 可以识别它并在日历上进行预订。但是，当我从 OpenTable 收到电子邮件时，我看到电子邮件顶部弹出了一张卡片。我们如何启用相同的行为？
解决方法
通过添加文本/日历或应用程序/ics 类型的附件，如下所示。
MIME-version: 1.0
From: "Gerard H. Pille" <[email protected]>
Message-ID: <[email protected]>
To: [email protected]
Date: Thu,07 Jan 2021 19:55:54 +0100
Subject: Invitation: Test eVent
Content-type: multipart/mixed; boundary="Boundary_(ID_qyG4ZdjoAsiZ+Jo19dCbWQ)"
--Boundary_(ID_qyG4ZdjoAsiZ+Jo19dCbWQ)
Content-type: multipart/alternative;
boundary="Boundary_(ID_ryU4ZdJoASiZ+Jo21dCbwA)"
--Boundary_(ID_ryU4ZdJoASiZ+Jo21dCbwA)
Content-type: text/plain; charset=UTF-8
Content-transfer-encoding: 8BIT
[email protected] has invited you to Test eVent
--Boundary_(ID_ryU4ZdJoASiZ+Jo21dCbwA)
Content-type: text/calendar; method=REQUEST; charset=UTF-8
Content-transfer-encoding: 8BIT
BEGIN:VCALENDAR
PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
VERSION:2.0
METHOD:REQUEST
BEGIN:VTIMEZONE
TZID:Europe/Brussels
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:19700329T020000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:19701025T030000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
CREATED:20210107T185501Z
LAST-MODIFIED:20210107T185554Z
DTSTAMP:20210107T185554Z
UID:b72ed9b2-bbf9-42ce-84f9-4579af0fdb1c
SUMMARY:Test eVent
ORGANIZER;RSVP=TRUE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:[email protected]
ATTENDEE;RSVP=TRUE;CN=Gerard H. Pille;PARTSTAT=NEEDS-ACTION;ROLE=REQ-PARTI
CIPANT:mailto:[email protected]
DTSTART;TZID=Europe/Brussels:20210107T200000
DTEND;TZID=Europe/Brussels:20210107T210000
TRANSP:OPAQUE
END:VEVENT
END:VCALENDAR
--Boundary_(ID_ryU4ZdJoASiZ+Jo21dCbwA)--
--Boundary_(ID_qyG4ZdjoAsiZ+Jo19dCbWQ)
Content-type: application/ics; name=invite.ics
Content-transfer-encoding: 8BIT
Content-disposition: attachment; filename=invite.ics
BEGIN:VCALENDAR
PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
VERSION:2.0
METHOD:REQUEST
BEGIN:VTIMEZONE
TZID:Europe/Brussels
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:19700329T020000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:19701025T030000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
CREATED:20210107T185501Z
LAST-MODIFIED:20210107T185554Z
DTSTAMP:20210107T185554Z
UID:b72ed9b2-bbf9-42ce-84f9-4579af0fdb1c
SUMMARY:Test eVent
ORGANIZER;RSVP=TRUE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:[email protected]
ATTENDEE;RSVP=TRUE;CN=Gerard H. Pille;PARTSTAT=NEEDS-ACTION;ROLE=REQ-PARTI
CIPANT:mailto:[email protected]
DTSTART;TZID=Europe/Brussels:20210107T200000
DTEND;TZID=Europe/Brussels:20210107T210000
TRANSP:OPAQUE
END:VEVENT
END:VCALENDAR
--Boundary_(ID_qyG4ZdjoAsiZ+Jo19dCbWQ)--