Blocking SPAM from my calendar????????

Ron Brown 0 Reputation points
2026-07-28T14:56:02.95+00:00

I am subscribed to microsoft 365 but I can't stop SPAM from adding events to my calendar. I have blocked the names and address and I have actually blocked the domain and they still show up on my calendar. I can't seem to find anything on setting to "block". If I decline, it comes back and I'm afraid it's sending my email to spammers showing that it is an active account. I'm at a loss.

Outlook | Web | Outlook.com | Calendar

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  1. Alice-N 13,250 Reputation points Microsoft External Staff Moderator
    2026-07-29T01:46:33.26+00:00

    Please note that our forum is a public platform, and we will modify your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.    


    Hi Ron Brown

    Please reply with these details so the issue can be narrowed down:

    • Do the spam items appear in Outlook.com on the web, or only in a specific app/device?
    • Do you see an unfamiliar group under Outlook.com Groups?
    • Is there a related invitation email in Junk Email, Deleted Items, or Search?
    • Can you delete the event from Outlook.com Calendar, or does it return immediately?
    • Are you using a personal Outlook.com/Hotmail account or a work/school Microsoft 365 mailbox?

    Also follow these steps:

    1) Do not accept or decline the spam invite

    Avoid using Accept, Tentative, or Decline on suspicious calendar invitations. Instead, remove or report the related message where available. Choose Report > Report phishing.

    2) Check whether you were added to an unwanted Outlook Group

    Because the sender shows @groups.outlook.com, check the Groups section in Outlook.com:

    • Go to Outlook.com.
    • Open Groups from the left pane.
    • Look for any group you do not recognize.
    • If you find one, open the group, go to Group Settings, and choose Leave Group.

    3) Create a rule to move or delete meeting-invitation spam

    If the spam is arriving as a meeting invitation email, create a rule in Outlook.com:

    • Go to Outlook.com.
    • Select Settings > Mail > Rules.
    • Select Add new rule.
    • Use a condition such as the sender/domain, subject words, or other details that match the spam invitation.
    • Set the action to Move to Junk Email or Delete.
    • Save the rule.

    4) Turn off automatic “Events from email”

    This may not stop every meeting invitation, but it can help prevent Outlook.com from automatically creating calendar items from supported email content.

    • In Outlook.com, select Settings.
    • Go to Calendar > Events from email.
    • For each event type, choose Don’t show event summaries in email or on my calendar.
    • Save the change.

    5) Keep the domain blocked, but enter it in the correct format

    Since you already tried blocking the sender/domain, re-check the entry in Outlook.com:

    • Go to Settings > Mail > Junk email.
    • Under Blocked senders and domains, add only the domain name when blocking a domain, for example: groups.outlook.com.
    • Do not include extra symbols such as <, >, or display names.
    • Select OK, then Save.

    6) Report the related email as junk or phishing

    If you can find the related invitation email in Inbox, Junk Email, Deleted Items, or through Search:

    • Select the message.
    • Choose Report.
    • Select Junk or Phishing.
    • Then delete the message.

    Please tell me how it goes. If the problem persists, please don’t hesitate to reply to this thread and I will be happy to help. Have a lovely day!  

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  2. Ron Brown 0 Reputation points
    2026-07-30T12:29:35.9166667+00:00

    update: The spam is NOT posting events on my calendar any more. They are just showing up in my junk email folder. I receive 100's of oversea potential client emails that also, understandably, show up in junk email. I scan down through my junk email folder every day to find my legitimate emails to mark as "not junk". Takes hours sometimes so I'm just trying to block/decrease the amount of junk emails/events I get.

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  3. Ron Brown 0 Reputation points
    2026-07-30T12:07:20.74+00:00

    I have followed all the above steps yesterday. it took about 3hrs to "clear" everything. The steps were explained very very well. I thank you for that. I checked my email this morning and I had 9 junk emails of which 6 were calendar event postings by the same group. I went back into the above settings and all individuals were still marked as don't receive any group messages. I also check that my "rule" was still in place. However, my "events from email" which you instructed to turn to "don't show" are back on. I changed to "don't show events" and clicked save. I exited my screen and went back and they were back to "show all"

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