i just don't know where to check the credentials , the mailwizz server or the api@carlbing - As the error says your credentials are incorrect, check the credentials for the delivery server again.
Which api delivery server you want to add ?i just don't know where to check the credentials , the mailwizz server or the api
This type of error: Your credentials are incorrect it is usually caused by api key.is there any thing that will affect the credentials problem ? we have check the private key but still not ok
You can open a support ticket with your credentials to take a look?we have check the api key and it still incorrect , is there any other problem will occur this ?