Mailgun offers Free Trial, but Boundless does not.
Mailgun is designed for Large Enterprises, Medium Business and Small Business.
Boundless is designed for Individuals, Large Enterprises, Medium Business and Small Business.
The starting price of Boundless begins at $19/Month, while pricing details for Mailgun are unavailable.
Some top alternatives to Mailgun includes SMTP, Campaigner and Moosend.
Some top alternatives to Boundless includes Unbounce, VWO Deploy, Wix, Webflow, Builder, Webstraw, WebsiteBuilder, Bookmark Website Builder, Webs, Format, SiteBuilder.com, HelloWeb, GoDaddy Website Builder, NinjaSites by 500apps and Web.com.