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You can use search-mailbox powershell command. In search query, use from address. then export into target mailbox, it could be any test mailbox and finally you can pipe delete command.<br />
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Refer:<br />
<a href="https://technet.microsoft.com/en-us/library/dd298173(v=exchg.160).aspx" rel="ugc">https://technet.microsoft.com/en-us/library/dd298173(v=exchg.160).aspx</a>
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How to delete spam message &nbsp;from all mailbox but email doesn't have any subject and from a particular sender ?<br />
Thanks
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How to delete spam message  from all mailbox but email doesn't have any subject and from a particular sender ?
Thanks

Deleting spam message.

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.