ESP Finder

Find the ESP behind any marketing email.

Curious which email platform was used to send the marketing campaigns in your inbox? Just forward them to esp@sendview.io and we’ll instantly reply with the answer.

ESP Finder is 100% free, just forward any email to:
esp@sendview.io

Top 25 ESPs

Keep in mind that while we current track over 90 ESPs and we're always adding new ones, if we can't identify a specific ESP they won't show up on the list.
ESP Name % of Total Chart
    MailChimp     24.1%
    Salesforce     13.7%
    Responsys     6.9%
    Listrak     5.0%
    Bronto     4.4%
    HubSpot     3.8%
    Emarsys     3.8%
    Iterable     2.9%
    Klaviyo     2.6%
    ActiveCampaign     2.5%
    Braze     2.5%
    CampaignMonitor     2.3%
    Dotmailer     2.2%
    Acoustic     2.1%
    Sparkpost     2.0%
    Sailthru     1.9%
    All In     1.4%
    Infusionsoft     0.8%
    Marketo     0.8%
    Constant Contact     0.8%
    Drip     0.7%
    Omnisend     0.7%
    Mapp     0.7%
    Pardot     0.7%
    Epsilon     0.7%