Emails to support bouncing back

FYI, trying to email support@bunnyinc.com and this immediately bounces back to me. My email is alxtrig@gmail.com if you need to whitelist it. Thanks.

Message not delivered

There was a problem delivering your message to support@bunnyinc.com. See the technical details below.

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The response was:

Your email to group support@bunnyinc.com was rejected due to spam classification. To address this issue: * Contact the owner of the group, who can choose to enable message moderation instead of bouncing these emails. * Set up SPF records for your sending domain if you have not done so already. Instructions for both steps can be found here: https://support.google.com/a/answer/168383.

Final-Recipient: rfc822; support@bunnyinc.com
Action: failed
Status: 5.0.0
Diagnostic-Code: smtp; Your email to group support@bunnyinc.com was rejected due to spam classification. To address this issue:
* Contact the owner of the group, who can choose to enable message moderation instead of bouncing these emails.
* Set up SPF records for your sending domain if you have not done so already.
Instructions for both steps can be found here: https://support.google.com/a/answer/168383.
Last-Attempt-Date: Fri, 09 Feb 2018 05:55:32 -0800 (PST)