Duplicate replies in Tickets from EMAIL channel

Hi,

I had issue with duplicate replies in Tickets from EMAIL channel by calling this API :

With this payload :

{

"channel" : "EMAIL",

"fromEmailAddress" : "mobile-app@my.zohodesk.com",

"contentType" : "plainText",

"content" : "Hello",

"isForward" : "true"

}

Then it shows duplicate replies in the tickets :

Duplicate Tickets replies

Is it caused by multiple support email address?

Here are my email configurations :

Support Email Addresses

From Email Addresses

Other Configuration

Regards,

Mahdi