Dear Team,
We have identified that our booking confirmation emails are being blocked or rejected for customers using @btinternet.com email addresses. These emails are sent to customers to confirm that their vehicle booking has been successfully received and processed.
Our investigation suggests that this issue is isolated to this specific email type and recipient domain. We can see that our other marketing and customer communications are being delivered successfully, and the problem appears to affect only the booking confirmation emails being sent to @btinternet.com recipients.
These messages are legitimate customer communications sent to individuals who have engaged with our services. Our domain is configured with SPF, DKIM, and DMARC authentication, and we actively monitor our email security and sending reputation.
Could you please investigate whether there are any filtering, reputation, or policy controls affecting the delivery of these messages to BT Internet customers? We would be grateful for any guidance on what may be causing these emails to be blocked and what steps we can take to restore successful delivery.
We can provide sample message headers, sending IP addresses, bounce messages, and any additional information required to assist with your investigation.
Thank you for your assistance, and we look forward to your response.
Kind regards,
