Smtp reply to not working

I have setup the smtp send email with from: abc@yahoo.com and reply to: xyz@hotmail.com.

When i received the email, abc@yahoo.com is correct but when i click reply, it reply to abc@yahoo.com instead of xyz@hotmail.com. Am wondering is it the issue with the current smtp send email?

I have also encountered this issue. I thought I had set something wrong, but checking emails sent earlier as well revealed that the reply to email was not being set.