Email Alert Notification: FROM address does not work

[Steve]

Hi

Email alert notification is working well with one exception: the FROM address.

I am currently sending the email TO my gmail address.

I have configured the FROM email address (different from the TO address) but it does not work.

In the email notification I received, the FROM email address is always equal to the TO email address (as if I send the email).

Is this a bug with alertmanager or is it gmail that works this way?

Thank you for your help!

-Steve

[Julien Pivotto]

Can you share your configuration (just alter the emails)?

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Julien Pivotto
@roidelapluie

[Steve]

Hi Julien

Here goes:

    receivers:

    - name: email

      email_configs:

      - to: my-e...@gmail.com

        from: alertm...@org.com

        smarthost: smtp.gmail.com:587

        auth_username: my-e...@gmail.com

        auth_identity: my-e...@gmail.com

        auth_password: abcdefghijklmn

        send_resolved: true

-Steve

[Brian Candler]

The issue is that Gmail is forcing your From: address to be the same as your authenticated identity (to avoid spoofing).

You can add extra verified E-mail addresses to your Gmail account, and then you will be able to send using those as well.  It's in Gmail settings somewhere.

Beware that if the domain "org.com" is using SPF, then its SPF record in the DNS needs to allow outbound mail from Google's servers.  If org.com is already Google hosted that's fine - but then you'd be better logging into Google with an org.com GSuite account.

[Steve]

Hi Brian

Thanks for the suggestion.

I looked for Gmail setting for adding a verified address.

No luck on my side.

-Steve

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[Brian Candler]

A quick google turns up this:

https://support.cloudhq.net/how-to-send-emails-from-a-different-address-or-alias-in-gmail/