From email and name are different even setting them in plug in

Hi,

I’ve set up the plug in, seems to be working, get the test email. But something strange happens and I don’t know where to look. I’ve searched both Google and the Forum but no luck.

I set the from email and name in the plugin to the ones I want to show.
Then when I get the test e-mail the from name and email are different.

The only thing I can think of that maybe it uses the default email setting from gmail settings no matter what I fill in the wp mail smtp plugin. But I have multiple Send mail as email addressed registered including the one I want to use. Or do I change something in WordPress.

I am a bit lost.

I have no idea how and where to fix this. Any help would be greatly appreciated. Thank you very much in advance for your time.