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I recently upgraded a colleagues Outlook from Outlook 2010 to Outlook 2016. This colleague has a lot of shared calendars with other colleagues.

What is happening, is this colleague is now receiving the reminders that other colleagues have set on their calendars. So they're receiving around 15 - 30 reminders every 5 to 10 minutes.

I initially thought this was down to the delegate settings set on people's Outlook accounts that they were connected with, but none of the settings where marked for my colleague to receive them. This is an example of what settings I have set under delegates:

Delegate settings example

I then thought it might be down to the permissions set on each calendar but when I went in and looked I couldn't find any settings under the calendar(s) themselves with an option to switch off the reminders for that particular person:

Calendar Permissions example

I can't seem to find a fix for this.. has anybody else come across this issue and know how to stop it from happening? Removing the shared calendars completely is not an option as everybody requires access to each others calendars.

  • How are these shared calendars added to the user's Outlook client? – music2myear Oct 12 '17 at 16:29
  • This might be caused by a third-party add-in. Try starting Outlook in Safe mode. – harrymc Oct 12 '17 at 16:35
  • @music2myear They're added via the user giving delegate access. The first image above is how the settings are set. This wasn't an issue until I upgraded them up to 2016 from 2010. – Joe Oct 12 '17 at 18:58
  • @harrymc I don't believe we have any third-party add-ons running alongside it, but they could've added something without telling me. I'll test this, thank you. – Joe Oct 12 '17 at 19:02
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+50

By default, reminders are only shown for mailboxes added in the Account Settings section of Outlook.

If this users only needs to view the calendars and not the actual mailboxes, they'll need to remove the extra mailboxes from Account Settings, and instead add the calendars in the Calendar section using Open Calendar or right-clicking on a Group and selecting Add Calendar.

| improve this answer | |
  • Thank you, I will test this as soon as I arrive at work. – Joe Oct 12 '17 at 18:58
  • Be aware that if user A is granted Full Access permission to mailbox B by the Exchange admin, Outlook 2010 and later will automatically add mailbox B to user A's Outlook profile, with the same effect as doing so through Account Settings. I say all this because if this is how your user is getting the reminders, removing User B's mailbox via Account Settings may not have the desired effect. – I say Reinstate Monica Oct 13 '17 at 3:53
  • Thank you for your help and being so patient! This method has worked a treat and the users no longer get bombarded with reminders :) – Joe Oct 18 '17 at 8:28
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    Glad to be of assistance. – music2myear Oct 18 '17 at 15:10

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