Market Share by Top Websites

1 Responder is leading in Top 1M Sites and The Entire Web.

2 In terms of market share, Rackspace MailGun is clearly lagging behind, losing to Responder in all segments.

Websites Categories

1 Responder has better usage coverage in more websites categories. Including Business & Industry, People & Society, Health, Shopping and 93 other categories.

2 Rackspace MailGun is leading in Software, Credit, Loans & Mortgages, Accounting, Mobile Developers and one other category.

Geography

1 Responder is leading in most countries, including Israel, Japan, Russia, Brazil and 9 other countries.

2 Rackspace MailGun is leading in United States, Chile, India, Australia and 5 other countries.