A pie chart showing Google: 41.1% Microsoft: 19.6% Yandex: 4.1% Proofpoint: 3.3% Mimecast: 2.7% Tencent QQ: 2.0% Namecheap: 1.9% GoDaddy: 1.6% Barracuda Networks: 1.2% Zoho: 1.1% Amazon AWS: 1.0% Rackspace: 0.9% Cisco IronPort Hosted MX: 0.8% VK / Mail.ru Group: 0.7% OVH: 0.7% SiteGround: 0.7% Beget LLC: 0.6%
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