My mails are returned (undelivered) I get this message
Reporting-MTA: dns; mo548.mail-out.ovh.net
X-Postfix-Queue-ID: 4WwHzp1Qt6z10h4
X-Postfix-Sender: rfc822; info@ingedejonge.com
Arrival-Date: Fri, 30 Aug 2024 12:49:58 +0000 (UTC)
Final-Recipient: rfc822; schipper.janwillem@gmail.com
Original-Recipient: rfc822;schipper.janwillem@gmail.com
Action: failed
Status: 5.7.26
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.26 Your email has been blocked because the
sender is unauthenticated. 550-5.7.26 Gmail requires all senders to
authenticate with either SPF or DKIM. 550-5.7.26 550-5.7.26
Authentication results: 550-5.7.26 DKIM = did not pass 550-5.7.26 SPF
[ingedejonge.com] with ip: [178.32.121.110] = did not pass 550-5.7.26
550-5.7.26 For instructions on setting up authentication, go to 550 5.7.26
https://support.google.com/mail/answer/81126#authentication
ffacd0b85a97d-3749efd8c12si1619835f8f.1044 - gsmtp
Hey @INGED,
This error indicates that the email you tried to send was blocked because it did not pass the authentication required by Gmail.
I suggest you:
* Configuring the SPF record: In the OVH panel, go to the DNS settings of your domain.
* Make sure there is a valid SPF record configured. OVH usually recommends a record like this:
```
v=spf1 include:mx.ovh.com -all
```
This allows mail servers to validate that emails sent from your domain through OVH are authorized.
* Verify configurations: after adding the SPF and DKIM records, verify that they are correctly configured using tools such as MXToolbox or Google Admin Toolbox. These tools will allow you to make sure that both SPF and DKIM are configured and working correctly.
Let me know how it goes,
Sergio Turpín