Impressionwise
6.2#23 in email verification services$87 one-timeWebAPI
VisitImpressionwise vs MailboxValidator
MailboxValidator
6.9#2 in email verification apisFree planFree planWebAPI
VisitWhat both publish
| Fact | Impressionwise | MailboxValidator |
|---|---|---|
| Headquarters | Clearwater, Florida, United States | Penang, Malaysia |
| Integrations | The service offers a real-time API, FTP file transfer, and workflow integrations, with connectors for CRMs, ESPs, forms, spreadsheets, and ad platforms. | Listed integrations include Zapier, Make, MailChimp, AWeber, Mailgun, SendGrid, Campaign Monitor, SparkPost, HubSpot, MailerLite, Constant Contact, VerticalResponse, MooSend, Mailjet, iContact, ActiveCampaign, Intercom, Autopilot, ChatGPT, and MCP. |
| Support | The contact page lists phone, email, and a contact form, with phone support Monday through Friday, 9am to 6pm EST. | The privacy policy lists [email protected] and says to allow up to four weeks for a reply to privacy inquiries. |
Impressionwise plans
- Verification with Threat Removal$87, paid once
- EnterprisePriced on request
MailboxValidator plans
- API-FREEFree
- API-FREE+Free
- BULK-TRIALFree
- BULK-1$19.95, paid once
- BULK-5$39.95, paid once
- BULK-10$59.95, paid once
Pick Impressionwise if…
You want what its maker publishes above — check its page for the details.
Pick MailboxValidator if…
It suits teams that need to check individual email addresses or validate uploaded lists. Developers can also use its API and linked language libraries.