Message bounced due to Bulk Sender
When sending an email to a group in G Suite, I get, 'Message rejected by Google Groups. Please visit http://support.google.com/a/answer/168383 to review our Bulk Email Senders Guidelines.'
Google has many procedures in place designed to protect the integrity of our system and fight spam. Additional procedures protect messages sent to groups, as groups are more vulnerable to large-scale spam attacks.
If you received this bounce-back message, it typically means that the IP address from which the message was sent has been identified by past Google user reports as sending some spam-related traffic.
Here are best practices that we recommend to help protect your domain against spam, while ensuring that intended traffic is delivered to your users:
- Add trusted sender's IP addresses into the Email Whitelist section at the following page:
An email whitelist is a list of IP addresses that you deem acceptable for sending mail to your domain, and that should not be labeled as spam. At this time, this feature is available only in G Suite. If you notice that legitimate emails from specific contacts are incorrectly marked spam, you can whitelist the contact's IP address. Once you whitelist the IP address, messages originating from this IP will no longer be marked spam. Learn more
- Publish an SPF record that includes Google's information. For more information, visit the following site.
- Ensure that your Inbound Gateway field is properly populated.
- In your group's settings, change the spam controls setting to allow messages suspected as spam. Note that doing so may cause an influx of spammy messages.
If your domain's MX records point to any other servers besides the Google Hosted servers, enter the sending IP ranges from these corresponding servers into the Inbound Gateway field.
To review your MX records, see the Check that your MX records are correct section in Troubleshoot MX Records
Follow all of these steps to ensure that mail delivery is working as efficiently as possible. If you continue to experience problems with this Bulk Senders issue, consider opening (or "whitelisting") your group to potential spam. See Legitimate mail sent to a group is marked as spam.
See Bulk Senders Guidelines for more information.