Pepipost is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Pepipost has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, Shopping, Arts & Entertainment and 95 other categories.
Rackspace MailGun is leading in Sports.
Pepipost is leading in most countries, including United States, India, Brazil, Viet Nam and 76 other countries.
Rackspace MailGun is leading in Puerto Rico.