Email Detective — ESP Tracker

by EmailTooltester

Get Email DetectiveDetect any senderright in your inbox Gmail Outlook

Email service providers used by Media brands

Real-world data from emails received by Email Detective users. Brand counts include only senders that have crossed our visibility threshold.

1,199Brands tracked

10ESPs detected

Top ESPs in Media

Substack

228

Amazon SES

109

Iterable

90

SendGrid

89

Kit

79

Mailchimp

78

Beehiiv

63

Klaviyo

62

HubSpot

57

Salesforce MC

49

Brands in Media

EmailTooltester Brevo

502 obs

Usainsidernews Amazon SES

386 obs

Financeevolution Amazon SES

376 obs

Reddit Amazon SES

338 obs

Nextdoor SendGrid

338 obs

Morningbrew Sailthru

298 obs

Stockmarkethour Amazon SES

283 obs

Telegraph Adobe Campaign

263 obs

Pinterest Mailgun

250 obs

Nytimes SparkPost

206 obs

Netflix Amazon SES

194 obs

Ziffdavis SendGrid

190 obs

Insiderintelligence Salesforce MC

183 obs

Tooltester Kit

174 obs

Smartinvestingschronicle Iterable

168 obs

Medium SendGrid

166 obs

Therundown Beehiiv

166 obs

Investmentnews HubSpot

166 obs

Google Bloomreach

148 obs

Investingtrendstoday Iterable

136 obs

Wsj Campaign Monitor

134 obs

Thetimes Sailthru

119 obs

Www Substack

105 obs

Thewealthadvisor Marketo

104 obs

Theguardian Braze

103 obs

Bookbub SendGrid

98 obs

Axios Sailthru

95 obs

Ft Mailgun

86 obs

Stockmarketmedia Customer.io

85 obs

Tlcsport Klaviyo

82 obs

Insidehook SparkPost

81 obs

Theverge Sailthru

80 obs

Cmswire Marketo

78 obs

Digitalmarkettrends Iterable

75 obs

Oregonlive Sailthru

75 obs

Economist Salesforce MC

75 obs

Nhl Iterable

68 obs

Owninnervoice Iterable

65 obs

Wizznews Airship

64 obs

Journaldunet CCM Benchmark

63 obs

Toprankedstocks Iterable

62 obs

Theskimm Sailthru

61 obs

Thesmartfortune ActiveCampaign

61 obs

Lenny Substack

58 obs

Investorsdaily Iterable

58 obs

Theinformation SendGrid

57 obs

Mn Mailgun

56 obs

Beyondtheinbox Newsletter Kit

56 obs

Spendhound Amazon SES

55 obs

Tldrnewsletter Amazon SES

54 obs

Welcometothejungle SendGrid

54 obs

Producthunt Mailjet

52 obs

TikTok SendGrid

52 obs

Economia3 ActiveCampaign

51 obs

Washingtonpost Iterable

50 obs

Smartinvestingsociety Iterable

50 obs

Stylist HubSpot

50 obs

Journaldesfemmes CCM Benchmark

49 obs

Frankwatching ActiveCampaign

48 obs

Firstinvestmentupdates Iterable

48 obs

Which Salesforce MC

47 obs

Searchenginejournal HubSpot

47 obs

Earningsaxis Iterable

47 obs

Thecapitalchronicle Iterable

47 obs

Thedailyaus Beehiiv

47 obs

Theeconomiclegacy Iterable

45 obs

Moneymagpie AWeber

44 obs

Bbreakdown Beehiiv

44 obs

Thestranger Mailchimp

44 obs

Dailymotivation Beehiiv

44 obs

Thehustle HubSpot

43 obs

Milkymoneyway Iterable

43 obs

Lifecare News Salesforce MC

42 obs

Disneyplus Amazon SES

42 obs

Hbomax Braze

41 obs

Theneurondaily Beehiiv

41 obs

Bankstreetjournal Iterable

41 obs

Dailystoic Kit

40 obs

Foodandwine Iterable

39 obs

Atlasobscura Klaviyo

39 obs

Statista Braze

39 obs

Inboxnewsletter Beehiiv

39 obs

Incomeinvestinginsider Iterable

39 obs

T3n Mailchimp

38 obs

Nickbrooksbird SparkPost

38 obs

Moneyweb Mailchimp

37 obs

Forbes Cordial

37 obs

Thefinanceperspective Iterable

37 obs

Iamnontas ActiveCampaign

37 obs

Juliangoldie Mailgun

37 obs

Thetimes Sailthru

36 obs

Sidehustlenation Kit

36 obs

Join1440 Sailthru

36 obs

Moneysavingexpert SparkPost

36 obs

Propertyinvestorsnetwork Keap

36 obs

Jamesclear Kit

35 obs

Theconversation Campaign Monitor

35 obs

Jeffsu Kit

34 obs

Wallstreetzen Customer.io

34 obs

Thebulwark Substack

34 obs

Anonymous data crowdsourced from Email Detective users. We collect only domain, esp, day — no personal data, no user identifiers. Back to all brands.