Rackspace MailGun is leading in Top 100K Sites and Top 1M Sites.
SendMsg has better usage coverage in more websites categories. Including Business & Industry, Health, Shopping, People & Society and 48 other categories.
Rackspace MailGun is leading in Computer & Electronics, Software, Finance, Construction & Maintenance and 15 other categories.
Rackspace MailGun is leading in most countries, including United States, United Kingdom, India, Australia and 17 other countries.
SendMsg is leading in Israel, Russia, Czech Republic, Italy and 13 other countries.