我只是想知道是否可以發送會議請求給沒有在服務器上安裝Outlook並使用COM Interop（我想避免在服務器上不惜一切代價）的人。在沒有Outlook的情況下發送Outlook會議請求？
我們在Windows 2003域中擁有Exchange 2003，所有用戶都是域用戶。我想我可以發送'圍繞iCal/vCal或其他東西，但我想知道是否有一個適當的標準方式通過Exchange發送會議請求沒有Outlook？
這是C＃/ .net，如果它很重要。
發送會議請求到Outlook（有它識別）的方式是這樣的：
multipart/alternative郵件：
text/html（或任何你喜歡） - 這是顯示爲「普通」郵件閱讀器或一個回落和含有事件摘要以人類可讀形式提供text/calendar; method=REQUEST保存了ics文件的內容（頭文件method參數必須與ics中的方法相匹配）。注意正確的文本編碼，聲明charset標題參數不會受到傷害。第3部分：可選地，附加.ics文件本身，所以普通郵件閱讀器可以爲用戶提供點擊的東西。 Outlook並不需要附件，因爲它只是讀取text/calendar部件。如需幫助瞭解ics文件格式的詳細信息和特性，請務必訪問iCalendar Specification Excerpts by Masahide Kanzaki。它們在黑暗中是一道亮光，遠勝於通過RFC 2445啃咬你的方式。但是，再一次，也許有一個方便的.NET庫存在。
查看DDay。sourceforge上的iCal C＃庫：
http://sourceforge.net/projects/dday-ical/
然後通過閱讀CodeProject上的文章：
http://www.codeproject.com/Articles/17980/Adding-iCalendar-Support-to-Your-Program-Part-1
而且閱讀：
Export event with C# to iCalendar and vCalendar format
下面的代碼會以這樣的方式發送會議請求Outlook將呈現接受/拒絕按鈕。
請注意，每次會議的UID必須是唯一的，我使用了GUID。
另請注意，您需要更換CREATED，DTSTART，DTEND，DTSTAMP，最後修改。這些是UTC日期/時間。
var m = new MailMessage();
m.Subject = "Meeting";
m.Body = "";
string iCal =
@"BEGIN:VCALENDAR
PRODID:-//Microsoft Corporation//Outlook 14.0 MIMEDIR//EN
VERSION:2.0
METHOD:PUBLISH
X-MS-OLK-FORCEINSPECTOROPEN:TRUE
BEGIN:VEVENT
CLASS:PUBLIC
CREATED:20140423T045933Z
DESCRIPTION:desc
DTEND:20140430T080000Z
DTSTAMP:20140423T045933Z
DTSTART:20140430T060000Z
LAST-MODIFIED:20140423T045933Z
LOCATION:location...
PRIORITY:5
SEQUENCE:0
SUMMARY;LANGUAGE=en-us:Summary...
TRANSP:OPAQUE
UID:D8BFD357-88A7-455C-86BC-C2CECA9AC5C6
X-MICROSOFT-CDO-BUSYSTATUS:BUSY
X-MICROSOFT-CDO-IMPORTANCE:1
X-MICROSOFT-DISALLOW-COUNTER:FALSE
X-MS-OLK-AUTOFILLLOCATION:FALSE
X-MS-OLK-CONFTYPE:0
BEGIN:VALARM
TRIGGER:-PT60M
ACTION:DISPLAY
DESCRIPTION:Reminder
END:VALARM
END:VEVENT
END:VCALENDAR";
using (var iCalView = AlternateView.CreateAlternateViewFromString(iCal, new System.Net.Mime.ContentType("text/calendar")))
{
m.AlternateViews.Add(iCalView);
var c = new SmtpClient();
// Send message
c.Send(m);
}
這裏假設你有你的配置文件配置本地SMTP服務器：
<system.net>
<mailSettings>
<smtp deliveryMethod="Network" from="[email protected]">
<network defaultCredentials="true" host="smtp.example.local" />
</smtp>
</mailSettings>
</system.net>
iCalendar是一個偉大的通用解決方案，以及DDay.iCal庫是做到這一點的好方法從.NET，但我相信Exchange Web Services（EWS）是在原始問題（Exchange，C＃/。NET）的上下文中更好的解決方案。
如果您使用.NET語言（例如C＃），則應使用EWS Managed API包裝器，這大大簡化了使用EWS的工作。
從the docs，這裏是如何使用EWS託管API來創建一個會議，並請求發送到受邀者：
// Create the appointment.
Appointment appointment = new Appointment(service);
// Set properties on the appointment. Add two required attendees and one optional attendee.
appointment.Subject = "Status Meeting";
appointment.Body = "The purpose of this meeting is to discuss status.";
appointment.Start = new DateTime(2009, 3, 1, 9, 0, 0);
appointment.End = appointment.Start.AddHours(2);
appointment.Location = "Conf Room";
appointment.RequiredAttendees.Add("[email protected]");
appointment.RequiredAttendees.Add("[email protected]");
appointment.OptionalAttendees.Add("[email protected]");
// Send the meeting request to all attendees and save a copy in the Sent Items folder.
appointment.Save(SendInvitationsMode.SendToAllAndSaveCopy);
您發送的郵件會議請求到Outlook不能以這種方式發送待辦事項。 您可以發送「預約」，但這些會在outlook中顯示爲必須「盲目」接受的.ics附件。
會議請求出現在outlook中，預覽效果不錯，可以接受或拒絕。 發送程序可能會在發送後修改或取消會議。
它easieset創建與DDay.iCal .Net Library
下面的代碼有效iCal項目是一個完整的工作示例。它使用有效的iCal會議請求構建一個字符串並通過郵件發送。
的代碼創建一個電子郵件與：
的代碼顯示瞭如何添加：
一些重要的細節：
關於途觀的具體細節解釋.ics文件詳見[MS-OXCICAL]: iCalendar to Appointment Object Conversion Algorithm
我們將使用這些組件：
using System;
using System.IO;
using System.Net.Mail;
using DDay.iCal;
using DDay.iCal.Serialization.iCalendar;
對於DDay.iCal其足夠的下載DDay.iCal binary Files。如果您想添加一些功能，最好查看DDay.iCal源代碼，因爲文檔已過時，並且源代碼包含非常完整的測試，可以體驗其所有功能。
const string filepath = @"C:\temp\ical.test.ics";
// use PUBLISH for appointments
// use REQUEST for meeting requests
const string METHOD = "REQUEST";
// Properties of the meeting request
// keep guid in sending program to modify or cancel the request later
Guid uid = Guid.Parse("2B127C67-73B3-43C5-A804-5666C2CA23C9");
string VisBetreff = "This is the subject of the meeting request";
string TerminVerantwortlicherEmail = "[email protected]";
string bodyPlainText = "This is the simple iCal plain text msg";
string bodyHtml = "This is the simple <b>iCal HTML message</b>";
string location = "Meeting room 101";
// 1: High
// 5: Normal
// 9: low
int priority = 1;
//=====================================
MailMessage message = new MailMessage();
message.From = new MailAddress("[email protected]");
message.To.Add(new MailAddress(TerminVerantwortlicherEmail));
message.Subject = "[VIS-Termin] " + VisBetreff;
// Plain Text Version
message.Body = bodyPlainText;
// HTML Version
string htmlBody = bodyHtml;
AlternateView HTMLV = AlternateView.CreateAlternateViewFromString(htmlBody,
new System.Net.Mime.ContentType("text/html"));
// iCal
IICalendar iCal = new iCalendar();
iCal.Method = METHOD;
iCal.ProductID = "My Metting Product";
// Create an event and attach it to the iCalendar.
Event evt = iCal.Create<Event>();
evt.UID = uid.ToString();
evt.Class = "PUBLIC";
// Needed by Outlook
evt.Created = new iCalDateTime(DateTime.Now);
evt.DTStamp = new iCalDateTime(DateTime.Now);
evt.Transparency = TransparencyType.Transparent;
// Set the event start/end times
evt.Start = new iCalDateTime(2014, 10, 3, 8, 0, 0);
evt.End = new iCalDateTime(2014, 10, 3, 8, 15, 0);
evt.Location = location;
//var organizer = new Organizer("[email protected]");
//evt.Organizer = organizer;
// Set the longer description of the event, plain text
evt.Description = bodyPlainText;
// Event description HTML text
// X-ALT-DESC;FMTTYPE=text/html
var prop = new CalendarProperty("X-ALT-DESC");
prop.AddParameter("FMTTYPE", "text/html");
prop.AddValue(bodyHtml);
evt.AddProperty(prop);
// Set the one-line summary of the event
evt.Summary = VisBetreff;
evt.Priority = priority;
//--- attendes are optional
IAttendee at = new Attendee("mailto:[email protected]");
at.ParticipationStatus = "NEEDS-ACTION";
at.RSVP = true;
at.Role = "REQ-PARTICIPANT";
evt.Attendees.Add(at);
// Let’s also add an alarm on this event so we can be reminded of it later.
Alarm alarm = new Alarm();
// Display the alarm somewhere on the screen.
alarm.Action = AlarmAction.Display;
// This is the text that will be displayed for the alarm.
alarm.Summary = "Upcoming meeting: " + VisBetreff;
// The alarm is set to occur 30 minutes before the event
alarm.Trigger = new Trigger(TimeSpan.FromMinutes(-30));
//--- Attachments
string filename = "Test.docx";
// Add an attachment to this event
IAttachment attachment = new DDay.iCal.Attachment();
attachment.Data = ReadBinary(@"C:\temp\Test.docx");
attachment.Parameters.Add("X-FILENAME", filename);
evt.Attachments.Add(attachment);
iCalendarSerializer serializer = new iCalendarSerializer();
serializer.Serialize(iCal, filepath);
// the .ics File as a string
string iCalStr = serializer.SerializeToString(iCal);
// .ics as AlternateView (used by Outlook)
// text/calendar part: method=REQUEST
System.Net.Mime.ContentType calendarType =
new System.Net.Mime.ContentType("text/calendar");
calendarType.Parameters.Add("method", METHOD);
AlternateView ICSview =
AlternateView.CreateAlternateViewFromString(iCalStr, calendarType);
// Compose
message.AlternateViews.Add(HTMLV);
message.AlternateViews.Add(ICSview); // must be the last part
// .ics as Attachment (used by mail clients other than Outlook)
Byte[] bytes = System.Text.Encoding.ASCII.GetBytes(iCalStr);
var ms = new System.IO.MemoryStream(bytes);
var a = new System.Net.Mail.Attachment(ms,
"VIS-Termin.ics", "text/calendar");
message.Attachments.Add(a);
// Send Mail
SmtpClient client = new SmtpClient();
client.Send(message);
這裏ReadBinary（）函數：
private static byte[] ReadBinary(string fileName)
{
byte[] binaryData = null;
using (FileStream reader = new FileStream(fileName,
FileMode.Open, FileAccess.Read))
{
binaryData = new byte[reader.Length];
reader.Read(binaryData, 0, (int)reader.Length);
}
return binaryData;
}
其最簡單的配置SmtpClient在配置文件中是這樣的：
<configuration>
...
<system.net>
<mailSettings>
<smtp>
<network host="mysmtp.server.com" port="25" userName="mySmtpUserName" password="myPassword" />
</smtp>
</mailSettings>
</system.net>
...
的時候，你選擇了等待的時間讓我認爲我的建議不完全是你想到的。你有沒有起作用？ – Tomalak 2009-01-23 10:53:55
我剛纔沒有時間去測試它。對它的快速測試似乎奏效，並且我發送了一個Outlook會議邀請函到一個啓用了POP3的帳戶以獲得「原始轉儲」。這兩位對我來說足夠好，因爲我只需要發送會議，但不關心回覆 – 2009-01-23 13:42:29
無論如何，您的回答非常有幫助，非常感謝！ – 2009-01-23 13:43:31