Hi Nancy,

Thank you for sharing your feedback, and I sincerely apologize for the frustration this 500 error has caused. I completely understand how running into an unhelpful error message with no clear next steps can leave you feeling stuck.

To provide a bit of context, a "500 Error" indicates an internal server issue on our end. Because the root cause is on our servers, there unfortunately aren't any troubleshooting steps you can take on your side to resolve it.

To help us investigate and fix the impasse you're running into, our Support team will need to take a look. Here is how you can reach them directly:

From your Dashboard: Click "Need help?" in the bottom-left corner, then select "Support center" from the menu to submit a ticket.

If you are having trouble logging in: You can go to the Mailjet login page, click on "Need help? Contact us," and fill out the web form.

When you submit your ticket, please include any relevant details, times, or screenshots of the error you encountered so our team can look into it right away.

Thank you for bringing this to our attention. We are actively working to improve how we communicate these errors, and our support team is standing by to help get this resolved for you!

Best regards,
David