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     22.3%
    Salesforce     15.8%
    Responsys     8.2%
    Listrak     5.5%
    HubSpot     4.6%
    Bronto     4.1%
    Emarsys     3.8%
    Iterable     2.9%
    Klaviyo     2.8%
    Braze     2.3%
    CampaignMonitor     2.2%
    Sailthru     2.1%
    Sparkpost     2.0%
    Acoustic     2.0%
    ActiveCampaign     1.7%
    All In     1.5%
    Dotmailer     1.2%
    IBM     1.1%
    Pardot     0.9%
    Epsilon     0.7%
    Infusionsoft     0.7%
    Maropost     0.6%
    Constant Contact     0.6%
    Mailjet     0.5%
    Mapp     0.5%