AtData SafeToSend vs EmailMarker
AtData SafeToSend
atdata.comEmailMarker
emailmarker.comSide by side
| Figure | AtData SafeToSend | EmailMarker |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 4 | 9 |
| Spec score · Email Verification Services | 8.4 (#6) | 8.1 (#12) |
| Integrations | AtData lists integrations including ActiveCampaign, AWeber, Campaign Monitor, Constant Contact, DotDigital, GetResponse, HubSpot, Klaviyo, Mailchimp, Marketo, and Salesforce Marketing Cloud. | The integrations page lists Mailchimp, GetResponse, Kit, AWeber, ActiveCampaign, Klaviyo, Brevo, MailerLite, SendGrid, and Mailgun. |
| Purpose | SafeToSend uses real-time activity and engagement signals to assess whether an email address is valid and valuable for marketing. | EmailMarker verifies email addresses and email lists to remove invalid addresses, reduce bounces, and protect sender reputation. |
| Support | AtData offers dedicated email address experts and lists a Help Center for support articles. | The privacy policy identifies Crisp as the live chat and customer support platform; pricing lists priority support with purchases. |
Plans
AtData SafeToSend
- SafeToSend — 100,000 credits$0.01, paid once
- SafeToSend — 500,000 credits$0.01, paid once
- SafeToSend — 50,000 credits$0.01, paid once
- SafeToSend — 5,000 credits$0.01, paid once
EmailMarker
- Free signup creditsFree
- 1,000 email verifications$3, paid once
- 5,000 email verifications$13, paid once
- 10,000 email verifications$21, paid once
- 50,000 email verifications$84, paid once
- 100,000 email verifications$161, paid once
- 500,000 email verifications$441, paid once
- 1,000,000 email verifications$589, paid once
- 2,000,000 email verifications$999, paid once
In their own words
AtData SafeToSend
AtData SafeToSend has no write-up on Specifiction yet; its figures are above.
EmailMarker
EmailMarker verifies individual email addresses and lists to help remove invalid entries, reduce bounces, and protect sender reputation. Its checks cover syntax and typos, disposable and role-based addresses, spam traps, MX records, catch-all settings, SMTP, domain age, and a risk score. For bulk work, users can upload CSV files, review valid, invalid, risky, and unknown results, and download cleaned lists; uploads can contain up to 1 million emails. The REST JSON API supports single and bulk verification with API-key authentication, and code examples or SDKs are listed for Node.js, Python, PHP, Ruby, and Go. Integrations include Mailchimp, GetResponse, Kit, AWeber, ActiveCampaign, Klaviyo, Brevo, MailerLite, SendGrid, and Mailgun. EmailMarker is available on the web and through an API, and offers real-time form checks. The free signup includes 150 verifications at free. Paid credits are one-time purchases, starting at $3, paid once for 1,000 verifications. Results may vary and are not guaranteed to be absolutely accurate.