about 1-2 hours ago, I received 2 emails from email@example.com on my personal email with title "Delivery Status Notification (Failure)" and a body as such:
This is an automatically generated Delivery Status Notification.
Delivery to the following recipients failed.
(email I never heard of)
The emails have 2 attachments: details.txt containing the following content:
Reporting-MTA: dns;SNT004-IMC1S8.hotmail.com Received-From-MTA: dns;SNT004-MC5F5.hotmail.com Arrival-Date: Fri, 2 Jun 2017 11:03:56 -0700
Final-Recipient: rfc822;(email I've never heard of) Action: failed Status: 5.5.0 Diagnostic-Code: smtp;550 Requested action not taken: mailbox unavailable (-506263085:397:0)
and an Outlook item called "You've Got Postcard" with login credentials for My Postcard.
Is this a known scam or malware attack? I use Outlook, and unfortunately it showed both emails in a preview window, which from what I understand is equally bad as directly opening the email with regards to potential for infection.
Update: the website that the "You've got Postcard" mail links to is wintergate dot com slash controlsk dot php (escaped to avoid accidental visits). One of the credentials (in case it helps) is kkrasa, Domain msn, Top Level Domain com (escaped to avoid spam) with password "BIZ" + "K7", so both quoted terms concatenated in this order without double quotes.
If anyone is interested in the direct HTML of the Postcard mail, it can be found at https://pastebin.com/twSL5v4a. I have already deleted the original email, so I cannot provide anything beyond this (this was in my Notepad++ cache).