How to manually verify or see DKIM of Mails?

MPREv2 · 10 Dec 2023

HI all,

I do understand that DKIM is a signature of Mails signed by the sending server.

But I do not understand how I could do this manually?
How would I:
1) Retrieve the public key for the sending server in the DNS?
2) Where would I see the Signature in the mail headers?
2.1) As the mail is passing usually several servers - is each of them adding the signature and checking it?

KR,
MP

TairikuOkami · 10 Dec 2023

MPREv2 said:

2) Where would I see the Signature in the mail headers?

Outlook - 3 dots - View - View message source
Gmail - 3 dots - Show original

MPREv2 said:

2.1) As the mail is passing usually several servers - is each of them adding the signature and checking it?

It seems so, I forward emails and it is all there, domains, IPs, DKIM signatures, etc.

bro67 · 10 Dec 2023

DKIM Test - DKIM Verify - DKIM Validator.