- MailUp API is off;
- username and/or password are incorrect;
- the IP address of the third party application has changed since the last successful access. The IP address can be manually changed in the MailUp console.
MailUp customer: a company/business subscribing to the MailUp service
Console URL / NL_URL: MailUp defines a dedicated URL for each customer. For this reason, external systems must know the exact URL to which to send the request (e.g. http://mailing.firstcompany.com/Services/WSMailup.asmx)
WS_MailUpImport: a web Service designed to import recipients from a third party application
MailUp API Account: a specific account for web services, made of a username and a password. It is automatically created when a new MailUp account is created for a new customer, while for existing customers it is manually created via the MailUp console.
WS: web service