Can anyone help me with my picture mail?

[imjoee]

So I try to send myself a picture from my computer. When I edit my photo with Lightroom an send it via email to myself to my iPhone it comes out blurry, how do I make it to the highest enough pixels for me to get that crisp picture?

 

[miles01110]

What e-mail client does Lightroom use to send the e-mail?