We have an IBM MQ Internet Pass-Thru V2.1.0.1(MQIPT) configured within our organization that consumes the messages published by an external organization 'X'. The external organization 'X' has distributed this MQIPT to use within our premises. We are trying to consume the messages published by 'X' to an IBM MQ (fully licensed) hosted on their side via the MQIPT hosted in our premises.
We have used the .NET library 'XMS.Net' (https://www.ibm.com/support/pages/xms-net-%E2%80%93-overview) to consume the messages via MQIPT. The licensing says it is free for a period of 90 days.
In this configuration, what is the licensing requirement that we need for using the XMS.NET IBM C# library?
Can anybody tell me if we need to purchase any licenses in addition to what 'X' already has? If yes, how much does it usually cost? I am trying to get help from IBM, but considering their prioritization, I hope I can get a quicker answer from here.