Reply to Outlook Mail Message from a Shared Mailbox

Let me explain what I have done:

Get outlook mail messages:

Account = Shared mailbox name

Mail folder = “Sent items”

Filter = filter to retrieve just one mail with condition

Top = 1

Messages = arr_messages

Up to this was fine. Can retrieve mails from shared mailbox.

Reply to outlook mail message:

To=To email address

Body=body text

MailMessage= arr_messages(0)

This will simply send reply from default mailbox which I don’t want.