why "@" is getting replaced with "¡" when sent through a text message using aws sns?

We have developed an backend application which sends messages to users of our application. We are using AWS SNS to send messages to our users. We are facing one issue with text messages, @ from our message is getting replaced with "¡". Please refer to the code below and let me know if I am doing anything wrong.

const params = {
                Message: message, /* required */
                PhoneNumber: eventData.phonenumber,
            };
const sendTextMessage = params => {return sns.publish(params).promise();}

The text message I sent:Hi user@mail.com

And the text I received: Hi user¡mail.com

Please let me help to solve this issue.