This SMTP client allows you to quickly send email messages through an SMTP server of your choice without the need to install a full featured email software. This app supports message attachments and SSL for secure connections.

This app is just a standard SMTP client. It just sends mail via the SMTP settings you entered. But, SMTP provided by most webmail service (Gmail,Yahoo...) does not work because of anti-spam system.
This app is useful for testing or sending mail via small/medium/private SMTP server.

You can choose multiple files directly from local computer, Google Drive, Dropbox, OneDrive, and Box.
Send messages up to about 15 megabytes in size. It's attachment files, not share links.