Sending Outlook meeting requests without Outlook.docx

Sending Outlook meeting requests without Outlook.docx

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SendingOutlookmeetingrequestswithoutOutlook

SendingOutlookmeetingrequestswithoutOutlook?

IjustwonderifitispossibletosendMeetingRequeststopeoplewithouthavingOutlookinstalledontheServerandusingCOMInterop（whichIwanttoavoidonaserveratallcosts）.

WehaveExchange2003inaWindows2003DomainandallusersaredomainUsers.IguessIcansend'roundiCal/vCalorsomething,butIwonderifthereisaproperstandardwaytosendMeetingRequeststhroughExchangewithoutOutlook?

ThisisC#/.netifitmatters.

ThewaytosendameetingrequesttoOutlook（andhaveitrecognized）goeslikethis:

∙prepareaniCalendarfile,besuretosettheseadditionalproperties,asOutlookneedsthem:

∙UID

∙SEQUENCE

∙CREATED

∙LAST-MODIFIED

∙DTSTAMP

∙prepareamultipart/alternativemail:

∙Part1:

text/html（orwhateveryoulike）-thisisdisplayedto"ordinary"mailreadersorasafall-backandcontainsasummaryoftheeventinhumanreadableform

∙Part2:

text/calendar;method=REQUEST,holdsthecontentsoftheicsfile（theheadermethodparametermustmatchthemethodintheics）.Watchoutforthecorrecttextencoding,declaringacharsetheaderparameterwon'thurt.

∙Part3:

Optionally,attachthe.icsfileitself,soordinarymailreaderscanoffertheusersomethingtoclickon.Outlookdoesnotreallyrequiretheattachmentbecauseitjustreadsthetext/calendarpart.

∙Sendthemailtoanoutlookuser.Ifyougoteverythingrightthemailshowsupasameetingrequest,completewithattendancebuttonsandautomaticentryintheuserscalendaruponaccept.

∙Setupsomethingthatprocessestheresponses（theygotothemeetingorganizer）.IhavenotyetbeenabletogetautomaticattendeetrackingtoworkwithanExchangemailboxbecausetheeventwon'texistintheorganizerscalendar.OutlookneedstheUIDsandSEQUENCEStomatchit'sexpectations,butwithaUIDyoumadeupthiswillhardlywork.

Forhelponthedetailsandpeculiaritiesoftheicsfileformat,besuretovisittheiCalendarSpecificationExcerptsbyMasahideKanzaki.Theyarealightinthedark,muchbetterthangnawingyourwaythroughRFC2445.Butthenagain,maybeahandylibraryexistsfor.NET.

sendingoutlookmeetingrequestthroughapplication

Hi,Ithinkyouoptionsare;1.createandICSfileontheserverthattheuserdownloads.（manyeventsitedothis）.2.IfyouhaveexchangeyoucanuseExchangeDAVorEWStocreateansendmeetingrequest.（thisitproballytheeasiest）SowhatdoyouhaveinyourENVwhatkindofexperianceareyoulookingfor?

isthisjustforoutlookusersetc.– 76melMar30'10at10:

17

As76melsuggestedanICSfilewillcreateanOutlookcalendarevent（orforanycalendarapplicationthatsupportsiCal）-thereprettysimple-justneedtowriteatextfilewithanICSextensionandamimetypeof"text/calendar":

BEGIN:

VCALENDAR 

VERSION:

2.0 

PRODID:

YourAppName 

METHOD:

PUBLISH 

BEGIN:

VEVENT 

DTSTART:

20100401T000000Z 

DTEND:

20100401T000000Z 

LOCATION:

Somewhere 

UID:

MeetingId 

DTSTAMP:

20100330T225528Z 

DESCRIPTION:

MeetingTitle 

SUMMARY:

MeetingDescription 

END:

VEVENT 

END:

VCALENDAR 

CreateOutlookTaskRequestfromASP.NET

1downvotefavorite

I'mlookingforawaytocreateOutlookTaskRequestfromASP.NET.I'musingExchangeServer2003foremailserver.Basically,userofmyASP.NETapplicationwilldosomethingthatwillcreateOutlookTaskbasedonsomelogic.Isthisnativelysupportedin.NETormustIusethirdpartycomponent?

Introduction

I�mgoingtoshowtwodifferentwaysofsendingtasksprogrammatically.OneisusingtheMicrosoftOutlook11.0ObjectLibraryandtheotherisusingvCalendar.

UsingMicrosoftOutlook11.0ObjectLibrary

ThesimplestoftheseisusingMicrosoft11.0objectlibrary.ThishasaclasscalledTaskItem.TaskItemrepresentsatask（anassigned,delegated,orself-imposedtasktobeperformedwithinaspecifiedtimeframe）inaTasksfolder.Likeappointmentsormeetings,taskscanbedelegated.YoucangetthislibraryfromAddReferenceandclickonCOMtab.

Createanaliasasfollows:

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usingOutlook=Microsoft.Office.Interop.Outlook;

CreateobjectsofApplicationClassandTaskItemasfollows:

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Outlook.ApplicationClassapp=newOutlook.ApplicationClass（）;

Outlook.TaskItemtsk=（Outlook.TaskItem）

app.CreateItem（Outlook.OlItemType.olTaskItem）;

Setthepropertiesoftaskasneeded:

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tsk.StartDate=DateTime.Now;

tsk.DueDate=DateTime.Now;

tsk.Subject="Test";

tsk.Body="TestingTask";

tsk.Recipients.Add（"abc@"）;

tsk.Assign（）;

tsk.Send（）;

That�sit.Thisisthesimplestwayforcreatingandsendingataskprogrammatically.Onedisadvantageofthisiswegettoclickawaytheannoyingsecuritypopups.

UsingvCalendar

ThenextwayisthroughthevCalendarobject.vCalendaristheindustrystandardformatforsending/receivingschedulinginformationelectronically.vCalendarwasdevelopedbyaconsortiumformedbyIBM,AT&T,SiemensandApple.Later,thisspecificationwasgiventoInternetMailConsortium.Now,mostofthePersonalInformationManager（PIM）programsonallsoftwaresupportvCalendarasthestandardexchangeformat.

MicrosoftOutlooksupportsvCalendar（whatmoredowewant;））.vCalendarfilesarenotjustusedtoexchangeappointmentsandscheduleswithinoneorganization.Theycanbeusedtoscheduleappointmentswithothers,whouseschedulingsoftwareincompatiblewithyours（allthemorewewant,right?

）.Let�sgetonwithhowtocreateavCalendarobjectprogrammatically.

vCalendarfilewouldlooksomethinglikethefollowing:

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BEGIN:

VCALENDARPRODID:

-//MicrosoftCorporation//OutlookMIMEDIR//EN

VERSION:

1.0BEGIN:

VEVENTDTSTART:

19980114T210000ZDTEND:

19980114T230000Z

LOCATION:

TeamRoomCATEGORIES:

Business

DESCRIPTION;ENCODING=QUOTED-PRINTABLE:

Testing

Task=0D=0ASUMMARY:

TestPRIORITY:

3END:

VEVENTEND:

VCALENDAR

TocreatethevCalendarobject,wehavethemethodgivenbelow:

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stringCreateTask（DateTimestart,DateTimeend,stringsub,stringmsgBody）

{

StringBuildersbvCalendar=newStringBuilder（）;

//Header

sbvCalendar.Append（"METHOD:

REQUEST"）;

sbvCalendar.Append（"\n"）;

sbvCalendar.Append（"BEGIN:

VCALENDAR"）;

sbvCalendar.Append（"\n"）;

sbvCalendar.Append（"PRODID:

-//MicrosoftCorporation//Outlook"）;

sbvCalendar.Append（"\n"）;

sbvCalendar.Append（"MIMEDIR//ENVERSION:

1.0"）;

sbvCalendar.Append（"\n"）;

sbvCalendar.Append（"BEGIN:

VEVENT"）;

sbvCalendar.Append（"\n"）;

//DTSTART

sbvCalendar.Append（"DTSTART:

"）;

stringhour=start.Hour.ToString（）;

if（hour.Length<2）{hour="0"+hour;}

stringmin=start.Minute.ToString（）;

if（min.Length<2）{min="0"+min;}

stringsec=start.Second.ToString（）;

if（sec.Length<2）{sec="0"+sec;}

stringmon=start.Month.ToString（）;

if（mon.Length<2）{mon="0"+mon;}

stringday=start.Day.ToString（）;

if（day.Length<2）{day="0"+day;}

sbvCalendar.Append（start.Year.ToString（）+mon+day

+"T"+hour+min+sec）;

sbvCalendar.Append（"\n"）;

//DTEND

sbvCalendar.Append（"DTEND:

"）;

hour=end.Hour.ToString（）;

if（hour.Length<2）{hour="0"+hour;}

min=end.Minute.ToString（）;

if（min.Length<2）{min="0"+min;}

sec=end.Second.ToString（）;

if（sec.Length<2）{sec="0"+sec;}

mon=end.Month.ToString（）;

if（mon.Length<2）{mon="0"+mon;}

day=end.Day.ToString（）;

if（day.Length<2）{day="0"+day;}

sbvCalendar.Append（end.Year.ToString（）+mon+

day+"T"+hour+min+sec）;

sbvCalendar.Append（"\n"）;

//Location

sbvCalendar.Append（"LOCATION;ENCODING=QUOTED-PRINTABLE:

"

+String.Empty）;

sbvCalendar.Append（"\n"）;

//Messagebody

sbvCalendar.Append（"DESCRIPTION;ENCODING=QUOTED-PRINTABLE:

"

+msgBody）;

sbvCalendar.Append（"\n"）;

//Subject

sbvCalendar.Append（"SUMMARY;ENCODING=QUOTED-PRINTABLE:

"

+sub）;

sbvCalendar.Append（"\n"）;

//Priority

sbvCalendar.Append（"PRIORITY:

3"）;

sbvCalendar.Append（"\n"）;

sbvCalendar.Append（"END:

VEVENT"）;

sbvCalendar.Append（"\n"）;

sbvCalendar.Append（"END:

VCALENDAR"）;

sbvCalendar.Append（"\n"）;

returnsbvCalendar.ToString（）;

}

Wecanusethismethodas:

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stringsub="Test";

stringbody="TestingTask";

//Createamessageobject

MailMessagemsg=newMailMessage（）;

msg.From="abc@";

msg.To="def@";

msg.Subject=sub;

msg.BodyEncoding=System.Text.Encoding.UTF8;

msg.Body=body;

//Setthedate/time

DateTimestart=DateTime.Parse（"Jan1,2005"）;

DateTimeend=DateTime.Parse（"Jan2,2005"）;

DateTimeex=DateTime.Now;

//LocationwhereyouwanttosavethevCalendarfile

stringattachUrl=

"C:

\Inetpub\wwwroot\WebApplication3\bin\Test.vcs";

//Createtask

using（StreamWritersw=newStreamWriter（attachUrl）

{

sw.Write（CreateTask（start,end,sub,body））;

}

//Attachthetask

MailAttachmentmAttachment=newMailAttachment（attachUrl）;

msg.Attachments.Add（mAttachment）;

//Send

SmtpMail.SmtpServer="some-smtp-mail-";

SmtpMail.Send（msg）;

That�sit.Happycoding!

SendCalendarAppointmentAsEmailAttachment

Introduction

Icameacrossascenariowhereameeting/visitschedulehadtobesetinanaspxpageandthesameschedulehadtobesentacrossasacalendarinviteinanemail.Thecalendarfilewastobeanattachmentintheemail.Thisarticlegivesabriefdescriptionoftheproceduretocreateanoutlookcalendarappointment（.ics）fileandsenditthroughemailasanattachmentandalsotocheckifthemethodworkedwithoutactuallyhavingtoconfiguretheSMTPservertosendthemail.

Steps:

Letusdividethissectioninto3broadparts:

ToCreateanOutlookcalendar（.ics）file.

ToAttachthefiletoanEmailme