I received an expected email last week from a client with the credentials to a web hosting account at GoDaddy. The email was from the personal account of the client and simply said:
"This is an encrypted email message. You must use your Web-Based Email account at http://email.secureserver.net/ to decrypt the message."
The email had an attachment with a random hash name and an *.sre file extension.
In a separate conversation I was provided a passphrase to open the file but can't seem to figure out how to open the encrypted email attachment.
I scoured the web for any information about .sre files and email encryption but can't find much. Any information would be helpful.