Market Share by Top Websites

1 Mandrill is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Postmark is clearly lagging behind, losing to Mandrill in all segments.

Websites Categories

1 Mandrill has better usage coverage in more websites categories. Including Computers Electronics & Technology, Business & Consumer Services, Science & Education, Finance and 18 other categories.

2 Postmark is leading in Games and Adult.


1 Mandrill is leading in most countries, including United States, Germany, United Kingdom, Japan and 156 other countries.

2 Postmark is leading in Montenegro and Barbados.