Easy WP SMTP by SendLayer – WordPress SMTP and Email Log Plugin, Improve email delivery for WordPress. Configure SendLayer, Mailgun, Sendinblue, SMTP.com or connect to an SMTP server.. It was authored by Easy WP SMTP. It currently has around 510 starts, 25 support threads and 25 support thread resolved, 8,031,101 downloaded and installed by 700,000 users.