Report emails to Microsoft that should be classified as junk or phishing scams

    For Outlook users, the primary way to submit junk messages is by using a plug-in known as the Microsoft Junk Email Reporting Add-in for Microsoft Outlook. For information about installing and using this tool, see Junk email reporting add-in for Microsoft Outlook.

    For Outlook on the web users, the primary way to submit junk email messages is by using its built-in junk email reporting option. For more information, see Report junk email and phishing scams in Outlook on the web.

Refer link https://technet.microsoft.com/en-us/library/jj200769(v=exchg.150).aspx

    You can also use email to submit messages to Microsoft that should be classified as junk or phishing scams as described in the following procedure.

Use email to submit junk (spam) or phishing scam messages to Microsoft

To submit a junk or phishing scam message to Microsoft:

    Create a new, blank email.

    Address the email to the Microsoft team that reviews messages as follows:

        For junk messages, address your email to junk@office365.microsoft.com.

        For phishing scam messages, address your email to phish@office365.microsoft.com.

    Copy and paste the junk or phishing scam message into that email (as an attachment).

    NoteNote:

    You can attach multiple messages to the email if you want to. Make sure all the messages are the same type - either phishing scam messages or junk email messages.

    Leave the body of the new message empty.

    Click Send.