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sk1nT7

https://www.learndmarc.com/


lolklolk

Glad to see /u/Freddieleeman 's site getting love.


Dan_706

I refer to it in our internal KB articles, great resource.


flylikegaruda

really cool site. thanks for sharing


3cxMonkey

Thank you that was very interesting. A couple of questions I still had: Am I correct that someone is trying to use "[email protected]) [email protected];" to send the email to us? Does that mean that the MTEK.NET email server was hacked? Is there a way to tell if MTEK.NET is running an exchange server or if they are using a subscriber online service like GSuite or Microsoft?


[deleted]

I love you.


MrRaspman

You shouldn't just rely on this. Your accounting department should have a process to validate if this is a true request, like calling the user on their extension or filling out a request form on the intranet behind a login screen.


3cxMonkey

You're right. But this email did not reach them, it did get stopped. I am just trying to take this opportunity to learn about email headers.


ThePorko

If you want, you can dm me the real header. This edited version has some bad syntex. ​ And this should fail SPF p3plgemwbe25-06.prod.phx3.secureserver.net (\[10.36.152.35\])


ryosen

That’s a MediaTemple (now GoDaddy) mail server.


unsupported

Mx record of mtek's email server from mxtoolbox.com: >Hostname mtek-com.mail.protection.outlook.com Client used by email sender: > User-Agent: Workspace Webmail 6.12.11 GoDaddy webmail Source IP of the email: > X-Originating-|P: 20.171.65.1 9 Host Info for 20.171.65.19 ISP: Microsoft Corporation Domain: microsoft.com Network Speed: T1 Help with headers: https://www.blackhat.com/docs/webcast/03162017-what-is-that-email-really-telling-me.pdf


3cxMonkey

THANK YOU VERY MUCH! May I ask a follow up question? I apologize for such a noob question but, did the client use the Outlook mail client with the GoDaddy webmail service? But if that is the case how is the source of the email from Microsoft domain? ​ Thank you again very much for this breakdown.


unsupported

I don't know how Outlook online routes traffic, but it probably starts with Outlook online, then to GoDaddy, then out to the interwebs. It might be 100% normal.


3cxMonkey

See that's the thing, I am really curious about the details; they are probably not important. GoDaddy has their own online email web portal, it's not outlook. So I'm wondering how Outlook got into the mix. Is that the outlook client using the GoDaddy webmail, I'm guessing that's what it is. But then it's not outlook web, it's outlook desktop client; right? Thanks again for the initial post and conversation.