SAM does not provide any native ability to query a mailbox in search of an email from a specific email account, message subject line, or content within the message body and then alert or perform some action based upon that. That does not however mean it's not possible to leverage SAM's Windows Script Monitor, PowerShell Monitor, or any other script methods to achieve the same effect. Below is one such example using VBscript. If you need assistance creating or customizing a script to perform this function, I recommend asking for assistance from the Thwack community script gurus in the Script Lab.