How can I delete an iCal event without notifying the sender?

Like C. Nicholas Nicholby I'm running Mac OS (10.9.5) and don't have the option to delete the new Spam calendar with "Delete without notifying" option. I went to iCloud via safari thinking I could delete the calendar there but it doesn't give me the option to "delete with notifying" there either. I really can't upgrade my OS because of apps I'm running. Do I have any options or work arounds left? What happens if I go ahead and delete with the spammer being notified? What's likely to happen then?

I'm guessing that nothing particularly bad will happen but obviously it's never a good idea to reply to spam as it lets them know that your account is a live one and their post got through. Having done it, I guess you can get their account blacklisted and/or blocked by your ISP. There's probably a 'block sender' option at your end too. I can't understand how this stupid 'delete and notify' thing is happening now, it didn't when I used the work-around just a couple of weeks ago (I'm running El Capitan 10.11.6). I really hope Apple get their act together and modify the calendar accordingly.

I found great instructions for a workaround here about setting up a JUNK/SPAM folder (copied here):

"Go into your calendar app and tap "Calendars" in the bottom bar. Then tap "Edit" in the top bar. Tap "Add Calendar..." and create a calendar called "Junk". There's a convenient brown color, so pick that (but it doesn't matter much because you'll never be seeing it). Tap "Done" and "Done" again. Go back to your spam event, select it and move it to the new Junk calendar (or if you already got rid of your spam invitation, just create some temporary event with an alert in the Junk calendar)--the calendar has to have something in it. Close out of the event, then tap "Calendars" again. Tap the "i" (info icon) button next to your junk calendar. Turn off the "Event Alerts" switch (so you won't get calendar notifications). Click "Done" again. Last, tap on the "Junk" calendar name, which will uncheck it, and now it is hidden from view. Your spam event is now hidden.

Now if you get any more, just select the events and move them to the Junk calendar and they're effectively gone. You may have to uncheck the Junk calendar on other iOS or Mac devices to hide it there as well."

This worked for me and I don't keep seeing the messages; however, this is not a solution as there isn't a way to report spam through the Calendar itself, but it may keep you from swearing at your monitor.

And as other people pointed out, it may be a good idea to change your Apple ID password too.

Open iCalendar, choose File > New Calendar and name it something like SPAM. Then drag and drop the meeting to the new calendar. It should disappear from your main calendar. You can verify this by unchecking the spam calendar to see that the event is only on that calendar. Now right-click the spam calendar and choose delete. You will see a dialog with three options. Choose the one that says delete and don't notify.

Why does Apple never officially answer these questions? Oh, wait... I remember: because Apple support is terrible. Apple: wake up and smell the support coffee. You need to be an active member of the online support community, not an aloof bystander.

Didn't work for me, thanks for posting...

Aw ****, I just ”Declined" the event... Now prepare for the waves of spam... *****!

1. Create a new iCloud calendar
2. Move the spam invite to the new iCloud calendar
3. Delete the newly created iCloud calendar with the spam appointment in it

Deleting that calendar will delete the event. You'll get a prompt whether you'd like to delete the event and notify the sender, or do so without notifying the sender.

This just happened to me and your solution was simple and effective. Thank you!

I'm running OS 10.9.5 and iCal 7.0 on my Mac computer so I get why my only option is "delete and notify" the Spam calendar with the spam events. That said, why can't I delete the Spam calendar on my iPhone running the most current iOS or on iCloud.com neither of which give me a "delete and don't notify" option.

I think Apple should give us a choice that allowing only the people in our contact books can send us an invitation. The spam is getting annoying every day and everyone please write to abuse@icloud.com to put more pressure on Apple Inc.

came across this in another discussion. It seems helpful moving forward....

Re: Spam Calendar Invites

That worked a treat thanks - bit of a faff but worth it to get rid without alerting the sender 😉

Workaround seems to be:

Open Calendar.

Create new calendar named "junk" (or whatever else)

Move event to the new calendar

Delete the new calendar and choose the "delete and don't notify" option

This is a pretty ridiculous workaround for what should be a simple option on the event itself (as it is in virtually every other calendar system). Apple really needs to add a "Delete" option that gives you a "don't notify" option to the event. As it is, it's highly unintuitive and these spam invites are usually phishing for valid/active e-mail addresses so there is a pretty serious account security concern.

Thank you. That worked! I was hacked by someone in China hawking fake Raybans.

I Did the move to a spam folder and delete the folder but on my iPad with ios 9.3.5 I didn't see the iption about not notifying spammer. Do you think it notified them?