2
Piped Bits SPIRAL is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
1
Rackspace MailGun has better usage coverage in more websites categories. Including Computers Electronics & Technology, Science & Education, Health, Law & Government and 9 other categories.
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Piped Bits SPIRAL is leading in Business & Consumer Services, Finance, Food & Drink, Heavy Industry & Engineering and 7 other categories.
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Rackspace MailGun is leading in most countries, including United States, Russia, Australia, United Kingdom and 59 other countries.
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Piped Bits SPIRAL is leading in Japan and Hong Kong.