1/28/2024 0 Comments Ischedule srvThe Calendar Server then consumes the invitation from the iSchedule URL just as it would have done if an external calendar server had posted an invitation to one of its users. Posting the invitation request to a calendar iSchedule URL Injecting the corresponding iTIP message into the regular calendar server workflowĪdding meta-data (email X- headers) to the iMIP email before delivering it to its recipients Intercepting incoming emails containing an iMIP message An iMIP message has an iCalendar attachment of type 'text/calendar' with a method= option in the 'Content-Type:' header. Message Server iMIP Configuration OverviewĪ Messaging Server MTA channel (an "iSchedule" channel) handles automatic processing of external calendar invites by: Finally, because of the addition of meta data to the email message, the Convergence (web-based) client is able to display a scheduling-specific form to users that enables them to accept, decline, or indicate a "maybe" to meeting invitations directly from their email without having to switch to the calendar client. As the response is sent directly by Calendar Server, it does not matter how the user accepted the invitation (whether from a calendar client on a mobile device, desktop, or from an email client). That status change also enables Calendar Server to send a response to the organizer indicating the disposition of the meeting request. Thus, based upon the user accepting or rejecting the request, the calendar client merely has to update the attendee status in the invitation. Because the invitation is already in the user's calendar, invitation replies and cancel are also merged automatically. That is, CalDAV clients now receive iMIP messages in their scheduling-inbox, and are able to process them just like regular CalDAV-based invitations and replies. Users can either accept the "external" meeting invite directly from their calendar client (either desktop or mobile iOS CalDAV clients) or they can still accept it from their email client. Once you have configured your deployment accordingly, users have a choice on how to process invitations. As a consequence, external event invitations automatically appear in the user's calendar without the need for a manual intervention, even when using a "non-calendar" aware client. You configure the Messaging Server MTA to process the calendar invite email (which is an iMIP message), extract the pertinent calendar information, then use the iSchedule protocol to add the invite to the attendee's calendar database. This capability involves an intermediary in the form of Messaging Server. To users, handling an external invite then appears just like an internal invite. You can configure your Calendar Server deployment to automatically process invitations coming from external calendar systems. For more information, see Calendar Server Security Guide.Automatically Accepting External Invitations The default setting for the parameter is an empty list, which denies all requests except for those from localhost. An entry of 0.0.0.0/0 allows all requests. For example, specifying a CIDR of 10.20.30.0/24 matches all addresses from the IP address 10.20.30.0 to the IP address 10.20.30.255. A CIDR entry is a base IP address followed by a number indicating how many upper bits to mask. The parameter takes a space separated list of single host IP addresses and/or Classless Inter-Domain Routing (CIDR) entries. The parameter lists the hosts from which iSchedule POST requests are allowed. You can also use the configuration parameter to prevent denial of service attacks on the iSchedule port. No special setup is required for Calendar server. See the topic on using the iSchedule channel to handle iMIP messages in Messaging Server Unified Configuration Administration Guide for instructions on how to set up Messaging Server. Thus, external invitations and responses get into users' calendars without any user intervention. You can use an iSchedule channel that interprets such mail messages and posts them to the Calendar server directly. Previously, end users had to manually import such invitations and responses that arrived in email into their calendars. The established standard for scheduling between two separate calendar servers is still only through iCalendar Message-Based Interoperability Protocol (iMIP), which sends calendar data over email. The iSchedule database is used to manage external calendar invitations. Enabling the iSchedule Channel to Handle iMIP Messages
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