We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Om de ûnderfining foar jo te ferbetterjen is tydlik de funksjonaliteit dan dizze website troch ûnderhâldswurk beheind. Wannear in artikel jo probleem net oplost en jo in fraach stelle wolle, kin ús stipemienskip jo helpe yn @FirefoxSupport op Twitter en /r/firefox op Reddit.

Avatar for Username

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Mear ynfo

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

Importing edited Mbox file from Gmail - Manipulation test

  • 1 antwurd
  • 1 hat dit probleem
  • 1 werjefte
  • Lêste antwurd fan Matt

bwbeachbar
bwbeachbar
more options

I am testing the theory behind manipulated emails and what forensic evidence can be obtained.

I notice that when Google Takeout is used to export emails from a Gmail account and are subsequently edited (in this case, the body text), SPF alters from "PASS" to "NONE with IP 0.0.0.0" and DKIM completely disappears in the "Original Message" view, however the headers remain unchanged with the exception of the edits to the body text.

The unedited email indicates SPF as "Pass" and DKIM as "Pass" (first image). This changes in the second image once any alteration is applied to the original email.

Before importing the email via Thunderbird, I delete the original email in Gmail (including the trash) and then load the manipulated email to Thunderbird and subsequently to the Gmail inbox.

Is there an explanation for the change in SPF and disappearance of DKIM to the manipulated email?

I am testing the theory behind manipulated emails and what forensic evidence can be obtained. I notice that when Google Takeout is used to export emails from a Gmail account and are subsequently edited (in this case, the body text), SPF alters from "PASS" to "NONE with IP 0.0.0.0" and DKIM completely disappears in the "Original Message" view, however the headers remain unchanged with the exception of the edits to the body text. The unedited email indicates SPF as "Pass" and DKIM as "Pass" (first image). This changes in the second image once any alteration is applied to the original email. Before importing the email via Thunderbird, I delete the original email in Gmail (including the trash) and then load the manipulated email to Thunderbird and subsequently to the Gmail inbox. Is there an explanation for the change in SPF and disappearance of DKIM to the manipulated email?
Keppele skermôfbyldingen

Alle antwurden (1)

Matt
Matt
  • Moderator
  • Top 10 Contributor
more options

Details on the SPF standard can be found here. https://datatracker.ietf.org/doc/html/rfc7208 and DKIM here https://datatracker.ietf.org/doc/html/rfc6376

Both of these are server side technologies and well beyond the scope of this forum.