You receive unwanted emails from a specific person or company in your Outlook mobile app. The Outlook app has a built-in feature to block senders. This article explains the steps to block a sender and manage your block list directly from your phone or tablet.
Key Takeaways: Blocking Senders in Outlook Mobile
- Block from an open message: Tap the three-dot menu on an email to instantly add the sender to your blocked list.
- Block from your inbox list: Swipe left on a message preview and tap the flag icon to block that sender.
- Settings > Mail > Blocked Senders: View and manage all addresses you have blocked from this central list.
Understanding the Block Feature in Outlook Mobile
Blocking a sender in the Outlook mobile app moves all future messages from that email address directly to your Junk Email folder. This action is synced with your Microsoft 365 account settings. Blocked messages are not deleted but are filtered out of your main inbox view.
You need the latest version of the Outlook app for iOS or Android for all features to work correctly. The block list is account-specific. If you have multiple accounts in the app, you must block a sender for each account separately.
Steps to Block a Sender in Outlook Mobile
You can block a sender directly from an email you have received. Use this method for the quickest action.
- Open the offending email
Tap on the message in your inbox to open it in full view. - Tap the three-dot menu
Look for the three vertical dots in the top-right corner of the message screen and tap them. - Select Block Sender
From the menu that appears, tap the option labeled “Block Sender”. A confirmation dialog will pop up. - Confirm the block
Tap “Block” on the confirmation prompt. The sender is now added to your blocked list.
Block a Sender from Your Inbox List
You do not need to open an email to block the sender. This method uses a swipe gesture from your main inbox.
- Swipe left on the message
In your inbox list, swipe left on the preview of the email from the sender you want to block. - Tap the flag icon
After swiping, several icons appear. Tap the icon that looks like a flag. This is the “Block” action. - Confirm the action
Tap “Block” on the confirmation prompt that appears to finalize the block.
Common Mistakes and Limitations
Blocked Emails Still Appearing in Inbox
If emails from a blocked sender still show in your inbox, check your Junk Email folder first. The block feature may take a few minutes to sync across servers. Ensure you blocked the exact address the emails are sent from, as senders often use multiple addresses.
Cannot Block Internal Company Senders
Your organization’s IT administrator may disable the block feature for internal domains. If the Block Sender option is grayed out for a coworker’s address, this is likely the cause. You must report the message as junk or use a focused inbox rule instead.
Accidentally Blocking the Wrong Sender
If you block someone by mistake, you can immediately reverse it. Go to Settings > Mail > Blocked Senders. Find the address in the list, swipe left on it, and tap “Unblock”. Their future emails will return to your inbox.
Blocking Methods Comparison
| Item | Block from Open Message | Block from Inbox List |
|---|---|---|
| Best for | Confirming sender details before blocking | Quickly blocking without opening the email |
| Steps required | Open email, tap menu, select block | Swipe left on preview, tap flag icon |
| Access to other actions | Full message menu like Reply, Forward | Limited to swipe actions like Archive, Delete |
| Speed | Slower, more deliberate | Faster, gesture-based |
You can now stop unwanted emails from cluttering your Outlook mobile inbox. Manage your blocked list in Settings to review or remove addresses. For more advanced filtering, explore the Rules feature in the desktop version of Outlook to create conditions based on subject lines or keywords.