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iCal Reply Checker is an add-in to iCal that gives the user options for how replies to meeting invites that are sent with Mail are dealt with.

This application allows the option to block some, all or none of the out-going meeting event related emails sent with Mail. It also gives the option to edit the message in Mail before sending.

Note:As iCloud, CalDAV and Exchange calendars send messages directly from the server and do not involve the local Calendar/Mail applications, iCal Reply Checker is not compatible with them.

What's New

Version 1.4.0:
  • Adds new OS X 10.8 sent invitations.
  • Fix OS X 10.8 stuck preferences bug.


  • OS X 10.4 - OS X 10.8
  • iCal
  • Mail

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iCal Reply Checker User Discussion

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Corpjester Member IconComment+18

seems to need an update. Has stopped working for me under Snow Leopard and the iCal beta now that Apple is moving to a CalDav format.

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Version 1.3.2
Jono_dale Member IconReview+1

This is a great piece of software that plugs a very serious hole in iCal where it can silently send invitations to people without your knowledge, especially for recurring events which have events in the past. When I upgraded to Snow Leopard, I noticed that a number of people were being flooded with iCal event changes when I made a change to a current event which had recurrences in the past (for some reason, iCal was retroactively updating the previous events and generating multiple invitations for these past events!).

iCal Reply Checker is a great way to stop this kind of nonsense, as well as giving more fine-grained control over how iCal can send invitations.

The only thing I think the developer should add (which would get 5 stars, IMHO) is to summarise the information where there are multiple invitations for a single event. For example, I have an event with 40+ participants and when I make a change with the preferences set to 'Do not send emails' and 'Display Notification', I have to dismiss 40+ dialogs. At the moment, I have 'Display Notification' unchecked so they are being silently discarded, but it would be nice to see when iCal is trying to send invitations in this situation.

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Version 1.3.1
Drdul Member IconReview+448

I've been using this for a while on my Mac Pro. This week I'm travelling with my MacBook Pro, on which I forgot to install iCal Reply Checker. After not being able to properly manage iCal's behaviour with two meeting invites, I couldn't stand it any more. I downloaded and installed iCal Reply Checker and all is well with the world. The moral of the story: don't leave home without it!

Why do I find it indispensable? Because far too many people mess up their meeting invites, especially when they reschedule or cancel. Maybe it's because most of them are using Outlook. iCal likes to reply to everything, and as a result I looked like a doofus because I'd be firing out replies left, right and centre. With iCal Reply Checker, I have the option of preventing iCal from replying to botched meeting invites.

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Version 1.2.1

I forgot to mention in my previous review another big reason for using iCal Reply Checker. Sometimes I want to add meetings to iCal that I won't be attending, and iCal Reply Checker enables me to do that without sending a reply accepting the meeting.

daskwijibo Member IconComment+1

Works perfectly

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Version 1.2.1
There are no Ratings for this App yet.
> 5 2


Current Version (1.x)


Downloads 4,036
Version Downloads 434
License Demo
Date 06 Feb 2013
Platform Intel 64 / OS X / Intel 32
Price $4.50
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