A bit confused about an error message that we have never gotten before.
We have the enterprise version for Acymailing only (no sending service) and when we are checking spam on a newsletter, we are just now getting this message: "The account "acy" does not have credits any more, please refill it!"
The link takes us to: https://www.mail-tester.com/manager/
What is this about and what credits is it talking about?
Thanks in advance!