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How to Stop Open-Xchange Emails About Nonexistent Payments in Outlook

Elise Williams Sep 30, 2026 869 views

Question details

The user needs to stop receiving recurring, unwanted Open-Xchange emails regarding a payment they never made.

How to Stop Open-Xchange Emails About a Nonexistent Payment in Outlook

Product: Microsoft Outlook
Device & OS: not provided
Scenario: Managing inbox spam and phishing attempts involving fake payment notifications.
Observed behavior: Suspicious Open-Xchange emails claiming a nonexistent payment are bypassing standard junk filters and continuously arriving in the user's inbox.

Before you start

Before configuring any inbox rules, ensure you do not click on any links or download attachments within the suspicious Open-Xchange emails to protect your device from potential phishing and malware.

Solution 1Recommended

Create a Deletion Rule in Outlook on the Web

Use Outlook's web version to automatically detect and delete incoming emails containing specific keywords or from specific domains.

This method is highly effective for stopping spam that constantly changes sender addresses but uses the same keywords in the subject or body.

Access Outlook Settings

Navigate to Rules

In the Settings menu, go to 'Mail' in the left sidebar and select 'Rules'. Click on 'Add new rule'.

Configure the Rule Conditions

Name your rule (e.g., 'Block Open-Xchange'). Under 'Add a condition', select 'Subject includes' or 'Message body includes', and type 'Open-Xchange' or the specific payment text used in the spam emails.

Set the Action to Delete

Under 'Add an action', select 'Delete'. Click 'Save' to apply the rule. From now on, any matching email will automatically be sent to the Deleted Items folder.

Create a Deletion Rule in Outlook on the Web

Rule Activated: The rule will process automatically in the background even when you are not actively logged into Outlook on the web.

Solution 2

Block the Sender or Domain in Classic Outlook

Use the desktop version of classic Outlook to add the specific spammer or their entire domain to your Blocked Senders list.

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Frequently Asked Questions

Why am I receiving Open-Xchange emails about payments I never authorized?

These are typically phishing campaigns or spam emails designed to create a false sense of urgency. Scammers use these fake payment alerts hoping you will click their malicious links or provide personal financial information.

Will blocking the sender permanently stop all Open-Xchange spam?

Not necessarily. Spammers frequently rotate their email addresses and domains to bypass blocklists. If you notice the emails coming from new addresses, creating a keyword-based deletion rule in Outlook is a much more effective long-term solution.

How can I report these phishing emails to Microsoft to improve filtering?

In Outlook on the web or classic Outlook, you can select the suspicious email and click the 'Report' or 'Junk' button on the top ribbon, then choose 'Report Phishing'. This sends a copy of the email to Microsoft's security team to help improve global spam filters.

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