Group bounces messages from bulk sender
If you received the following message when emailing a group in G Suite, it typically means that the IP address the message came from has been identified by other users as sending spam-related traffic.
'Message rejected by Google Groups. Please visit http://support.google.com/a/answer/168383 to review our Bulk Email Senders Guidelines.'
Here’s what you can do to fix the problem.
Protect against spam and get mail to users
If a group message you sent has bounced:
- Add the trusted sender’s IP addresses to the email whitelist.
Bulk mail from this sender won't be flagged as spam.
- Add an SPF record for your domain to identify which mail servers are permitted to send email on behalf of your domain.
- Customize your organization's spam filters to create an approved sender list to bypass any spam filters.
Enable Google Groups for Business
If you want more control over filtering, you can enable Google Groups for Business. With that, you have more control over how spam messages are treated.
If your MX records point to other servers
Use the Inbound gateway field when your domain’s MX records aren't pointing to Google, but you're relaying all your mail through another mail server first and then to Google. The Inbound gateway field influences the behavior of reputation checks and SPF checks.
If your domain's MX records point to any other servers besides the Google Hosted servers:
- In the Inbound Gateway field, enter the sending IP ranges from the servers that your MX records are pointing to.
- Check that your MX records are correct.