Conversion of XML to objects is a standard function in Caché.
start with http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=...

and continue http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=...

the principle steps

• generate a package o classes from XML Schema
• import your XML File to this package
• - - -  change whatever you want to change
• use %XML.Writer  to generate a new export file.

a different approach could be to use XSLT to transform your XML file
http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=...

Whatever better fits to reach your goal.

Take the example from %Net.SMTP to SAMPLE or USER independent of any ENS*

http://docs.intersystems.com/latest/csp/documatic/%25CSP.Documatic.cls?P...

and see if it runs on all 3 instances to verify SMTP access.

If it fails you may take a closer look to your firewalls  outgoing  and on SMTP server incoming.

If this works on all 3 instances than your config in ENSEMBLE is somehow different .

OR

in SAMPLES use Class Cinema.Utils. SendEmail(...) and adjust is to your needs

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- For  JAVA take a look on IRIS or today to XEP ( which is incredible fast )
- For JavaScript you have nodes.js / cache.node  (also speedy)
- C#  lives by it's Windows bound libraries. 

You have to configure your SSLConfiguration = "SSLPadraoAdapcon" in Mgmt Portal.

http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=...

for 2010.1:

http://docs.intersystems.com/cache20101/csp/docbook/DocBook.UI.Page.cls?KEY=GCAS_ssltls

It's a little bit complicated

Controlling the Use of Namespaces
http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=...

I'm not sure this really your problem. It could be. 

The first TEST should be your Mgmt Portal.

Language definitions are predefined and loaded at installation time.
to change it later from Mgmt Portal: 
System > Configuration > Locale Definitions 

If you run on UNICODE it should be enough to change it to PTBW - Portuguese, Brasil, Unicode (comboBox)

ending 8 = 8 bit encoded
ensing W = WIDE = Unicode

If your system is any 8bit installation. Someone else may have an answer. It may cause some troubles on a running installation. I never touched this.

my personal experience in management portal:

changed my primary browser language from  "de"  to "en"  and the portal followed at next browser start.

So this might relate to ZEN somehow:
Do you use the $$$TEXT equivalent of ZEN ? $$$TextJS, $$$FormatText

for details and how-to see http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=...

Does your Caché NLS seting support pt-br  ?  (mine includes German DEUW)

Rodrigo is right:

http://docs.intersystems.com/latest/csp/documatic/%25CSP.Documatic.cls?P...

says:

• property Language as %String;

The language (RFC 1766 format) in which pages in this CSP session are to be displayed.
The %session. Language attribute is used as the default language for csp:text, span and div tags if %response.Language is not set. If %session.Language is not set by the program, then it will default to the best fit with the HTTP_ ACCEPT_LANGUAGE CGI variable.

Caché Programming Orientation Guide > Useful Skills to Learn > Browsing a Table

Browsing a Table

For basics on SQL:  https://www.w3schools.com/sql/

So enable connection in Mgmt Portal

see docs:

http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=...