我想向Outlook客户端发送包含约会\会议(ICS)的电子邮件。当用户收到电子邮件时,他应该接受会议邀请,并自动将会议转到日历,电子邮件将自动删除。
我正在使用此代码:
public void Sendmail_With_IcsAttachment()
{
MailMessage msg = new MailMessage();
//Now we have to set the value to Mail message properties
//Note Please change it to correct mail-id to use this in your application
msg.From = new MailAddress("xxxxx@xyz.com", "ABC");
msg.To.Add(new MailAddress("yyyyy@xyz.com", "BCD"));
msg.CC.Add(new MailAddress("zzzzz@xyz.com", "DEF"));// it is optional, only if required
msg.Subject = "Send mail with ICS file as an Attachment";
msg.Body = "Please Attend the meeting with this schedule";
// Now Contruct the ICS file using string builder
StringBuilder str = new StringBuilder();
str.AppendLine("BEGIN:VCALENDAR");
str.AppendLine("PRODID:-//Schedule a Meeting");
str.AppendLine("VERSION:2.0");
str.AppendLine("METHOD:REQUEST");
str.AppendLine("BEGIN:VEVENT");
str.AppendLine(string.Format("DTSTART:{0:yyyyMMddTHHmmssZ}", DateTime.Now.AddMinutes(+330)));
str.AppendLine(string.Format("DTSTAMP:{0:yyyyMMddTHHmmssZ}", DateTime.UtcNow));
str.AppendLine(string.Format("DTEND:{0:yyyyMMddTHHmmssZ}", DateTime.Now.AddMinutes(+660)));
str.AppendLine("LOCATION: " + this.Location);
str.AppendLine(string.Format("UID:{0}", Guid.NewGuid()));
str.AppendLine(string.Format("DESCRIPTION:{0}", msg.Body));
str.AppendLine(string.Format("X-ALT-DESC;FMTTYPE=text/html:{0}", msg.Body));
str.AppendLine(string.Format("SUMMARY:{0}", msg.Subject));
str.AppendLine(string.Format("ORGANIZER:MAILTO:{0}", msg.From.Address));
str.AppendLine(string.Format("ATTENDEE;CN=\"{0}\";RSVP=TRUE:mailto:{1}", msg.To[0].DisplayName, msg.To[0].Address));
str.AppendLine("BEGIN:VALARM");
str.AppendLine("TRIGGER:-PT15M");
str.AppendLine("ACTION:DISPLAY");
str.AppendLine("DESCRIPTION:Reminder");
str.AppendLine("END:VALARM");
str.AppendLine("END:VEVENT");
str.AppendLine("END:VCALENDAR");
//Now sending a mail with attachment ICS file.
System.Net.Mail.SmtpClient smtpclient = new System.Net.Mail.SmtpClient();
smtpclient.Host = "localhost"; //-------this has to given the Mailserver IP
smtpclient.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
System.Net.Mime.ContentType contype = new System.Net.Mime.ContentType("text/calendar");
contype.Parameters.Add("method", "REQUEST");
contype.Parameters.Add("name", "Meeting.ics");
AlternateView avCal = AlternateView.CreateAlternateViewFromString(str.ToString(), contype);
msg.AlternateViews.Add(avCal);
smtpclient.Send(msg);
}
邮件已正确发送,但在Outlook中(我用outlook 2010测试它)它显示了正文,位置,数据,它显示了日历,但在我看到的邮件中的日历上方"无法在日历上找到会议" "接受","拒绝""按钮被禁用!
我尝试了其他解决方案,并在网上找到了。 DDAY.Ical但我还没有找到任何使用它的例子。
答案 0 :(得分:11)
经过大量挖掘后,我找到了解决方案:
您需要将电子邮件的内容类设置为
Content-class: urn:content-classes:calendarmessage
所以将此添加到您的代码中它应该可以正常工作
msg.Headers.Add("Content-class", "urn:content-classes:calendarmessage");
答案 1 :(得分:1)
我认为你在msg.From和msg.To
中都使用了相同的电子邮件IDmsg.From = new MailAddress("xxxxx@xyz.com", "ABC");
msg.To.Add(new MailAddress("yyyy@xyz.com", "BCD"));
我遇到同样的问题,但在接受不同的电子邮件后得到解决。