Hi @Neil Mcfarlane
Welcome to our forum!
Looks like the issue is more related to Outlook for mobile. Please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client. In order to better solve your problem, it's suggested to post your issue on this dedicated forum for Outlook for Mobile for more professional help.
In addition, here are some steps you may refer to:
- Report suspicious emails with Outlook's Report Message button
- Block specific email addresses or domains in Outlook
- Set up rules to filter out emails with specific keywords or patterns that are common in phishing emails
More information: Block senders or mark email as junk in Outlook.com or Outlook on the web. - Microsoft Support
Hope it helps!
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