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     21.8%
    Salesforce     15.6%
    Responsys     5.9%
    Acoustic     5.1%
    ConvertKit     3.8%
    Braze     3.7%
    Listrak     3.6%
    Bronto     3.3%
    Klaviyo     3.2%
    HubSpot     3.0%
    Sparkpost     2.8%
    Iterable     2.4%
    Emarsys     2.3%
    ActiveCampaign     1.9%
    Constant Contact     1.8%
    CampaignMonitor     1.8%
    Mapp     1.5%
    Sailthru     1.4%
    All In     1.1%
    Dotmailer     1.1%
    EmailOctopus     0.8%
    Pardot     0.7%
    Drip     0.7%
    AWeber     0.6%
    Mailjet     0.6%