ESP Finder
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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@peakfeed.com and we’ll instantly reply with the answer.

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

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     24.2%
    Salesforce     14.5%
    IBM     4.3%
    Sailthru     3.8%
    Marketo     3.2%
    Braze     3.2%
    HubSpot     3.2%
    CampaignMonitor     3.2%
    Responsys     3.2%
    Sparkpost     2.7%
    Bronto     2.7%
    Iterable     2.7%
    Constant Contact     2.2%
    Emarsys     2.2%
    ActiveCampaign     2.2%
    Listrak     1.6%
    Pardot     1.6%
    Intercom     1.1%
    All In     1.1%
    MailerLite     1.1%
    Infusionsoft     1.1%
    Klaviyo     1.1%
    Mailjet     1.1%
    EveryAction     1.1%
    Dyn     1.1%

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