Web Service SOAP 1.2 any options?

My client would like to use Android用充電器・おすすめ~急速充電器・アンドロイド・スマホ充電器・充電ケーブル・タイプB・タイプC・メーカー・ドコモ・au~ esbooks.co.jp to send all documentation generated from their applications using the imail web service. PDF files are generated from Notes documents on the server (using iText and Flying Saucer to convert XML + XHTML to pdf), then passed to the web service:https://www.imail.co.uk/webservice/imail_api.asmx?WSDL

I have tested some basic methods of the iMail API in SOAPUi, and I can authenticate (I’ve already set up an account with iMail).

…but, I can not import the WSDL into Notes. The error message when importing is “An error occurred while importing the WSDL file: No supported (i.e. SOAP 1.1) binding found in the WSDL document.”

I am fairly certain that this is because it is SOAP 1.2 WSDL and Domino does not support this:

The end process will be running on Domino 8.5.1 (the OS should be irrelevant I think, but it will be running on Linux).

I have to admit that I do not know the SOAP protocol well enough to know if there is a way around this e.g. Is there anything I can do to “mark the WSDL up by hand”?

Any comments or suggestions would be most welcome…it would be great if I could get this working, it’s the last piece in my: notes document - > XML + XHTML → iText + FlyingSaucer → pdf → to web service.

Thanks in advance,

Nick