EMAIL Package is invalid

Hi all, on implementing DELIVERY Module in R18 and when sending EMAIL we have the error "EMAIL Package is invalid" in DE.O.HEADER of the message. Has this happened to anyone? Can anyone suggest me what configuration can I check?
Can anyone have a manual for setup EMAIL and SMS for R18.
We follow all the steps in tcsp.temenos.com/HowTo/T24SMS.aspx, but it always gives us the same error.
Thanks to all.

Hi,
Make sure that your T24Email.properties file contains all the key parameters below.

mail.transport.protocol=
mail.smtp.host=
mail.smtp.port=
mail.smtp.auth=
mail.debug=true
mail.login.username=
mail.login.password=
# Specifically for encryption and decryption if required for the t24email password.
mail.login.encrypt.password=false
mail.login.decrypt.package=
mail.login.decrypt.method=
mail.template.name=

Even if there are a facultative parameter like mail.template.name, it is necessary to left the key parameter in the T24Email.properties file with empty value. When sending the mail, the program reads the value of theses key paramaters and generete the NullPointerException if there are missing key parameters. In case of NullPointerException, the message returned is "EMAIL Package is invalid"

Our Customer Communication Platform - =12.0pt CORBAN  from Nayamsoft, works natively with all flavours of T24 and supports traditional and modern channels like SMS, EMAIL, WHATSAPP, TELEGRAM, PUSH, etc.It's a scalable platform built on cloud native technologies for the modern banking needs

www.slideshare.net/SomasundaramM10/nayam...unicationplatformpdf