How do I check the source of an email?

Question

I've been setting up DKIM using this guide and I'm trying to verify it. In step 6 it says: In received email in our mailbox, open the source of email and search for "DKIM-Signature".

How do I open the source of the email to check the DKIM-signature? I'm running debian. Might be a stupid question but I can't find how to do it.

Thanks.

In what language? How do you receive the mail? Are you using a mail-handling library? — Toby Speight, Oct 10 '19 at 14:11
@TobySpeight I'm using Postfix and I'm sending the mail via telnet — grabbhalf, Oct 10 '19 at 20:30
And what language are you writing this code in? You should add the appropriate tag, so that experts in that language are more likely to see your question. — Toby Speight, Oct 10 '19 at 20:46

score 0 · Answer 1 · answered Oct 11 '19 at 11:39

mail -vs "Test DKIM" test_email@gmail.com < /dev/null

This command sends an email to test_email@gmail.com, so enter your real email and check the spam folder for the mail.

After this, open the email, click the 3 vertical dots on the right of the email and select "Show original" option from the dropdown and here you will see the DKIM signature

How do I check the source of an email?

1 Answers1