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I want to send out email from my domain, but when I do, recipients are seeing a question mark indicating that I'm not authenticated.

It seems that gmail only supports digitally-signed DKIM if you subscribe to G Suite. Is it possible in standard gmail?

  • How are you sending email from your domain? Are you using the Gmail servers or do you have your own SMTP servers?
    – Rubén
    Sep 9, 2017 at 16:25
  • Alternate SMTP servers through go Daddy. Different domain though. Is it possible to use Gmail SMTP? Sep 9, 2017 at 16:46
  • @Rubén I'm pretty sure in order to send from another email address, gmail requires you to use external SMTP servers; don't they? Sep 9, 2017 at 19:26
  • 1
    @glenviewjeff they don't, see this. (Okay, I realise you've now seen it already but thought worth posting here.)
    – John
    Sep 10, 2017 at 7:33
  • I did end up switching to Gmail servers per the other question, worked fine. So my authentication is no longer needed. I'll post the "answer" later Sep 10, 2017 at 12:54


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