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Impressionwise

impressionwise.com

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Spec score 7.9 #17 of 36 in Email Verification Services

Spec sheet

Product
Impressionwise provides deliverability intelligence and threat detection to help users decide which email addresses are safe to send to.Read 9 Oct 2026 · impressionwise.com
Intended users
The maker says the service is for businesses of all sizes, including individual operators, small and medium businesses, and large organizations.Read 9 Oct 2026 · impressionwise.com
Integrations
The service offers a real-time API, FTP file transfer, and workflow integrations, with connectors for CRMs, ESPs, forms, spreadsheets, and ad platforms.Read 9 Oct 2026 · impressionwise.com
Privacy
The FAQ says customer email data is used only for validation, is not shared with third parties, and is removed within 30 days or earlier on request.Read 9 Oct 2026 · impressionwise.com
Compliance
The maker describes the service as fully GDPR compliant.Read 9 Oct 2026 · impressionwise.com
Support
The contact page lists phone, email, and a contact form, with phone support Monday through Friday, 9am to 6pm EST.Read 9 Oct 2026 · impressionwise.com
Headquarters
Clearwater, Florida, United StatesRead 28 Sep 2026 · impressionwise.com
API capacity
The integrations page says a single API request can verify a single address or automated batches of up to 1 million email addresses.Read 9 Oct 2026 · impressionwise.com
Bulk processing
The FAQ says users can upload files of up to 8 million emails, and a one-million-address batch typically takes about 3 to 4 hours.Read 9 Oct 2026 · impressionwise.com
Data retention
Documentation says uploaded files and results are automatically deleted from the account and FTP after 7 to 10 days.Read 9 Oct 2026 · impressionwise.com
Free evaluation
The complimentary evaluation processes a file of up to 100,000 emails and provides a summary report; results files are not included.Read 9 Oct 2026 · impressionwise.com
Notable limits
The pricing FAQ says the service does not support verifying Yahoo and AOL addresses.Read 9 Oct 2026 · impressionwise.com
Signal analysis
The service says it analyzes more than 240 independent signals in email data.Read 9 Oct 2026 · impressionwise.com
Threat detection
Its threat checks include spam traps, honeypots, dormant accounts, disposable addresses, bots, and risky domains.Read 9 Oct 2026 · impressionwise.com
Verification
The maker says standard verification uses DNS and SMTP without sending messages to external mail exchangers; catch-all validation is an exception when specifically selected.Read 9 Oct 2026 · impressionwise.com

Plans and prices

Verification with Threat Removal $87, paid once $87.00 USD for 15,000 credits 15,000 credit minimum · 1 credit per email · credits never expire Read 9 Oct 2026 · impressionwise.com
Enterprise Priced on request Contact us for volume-based pricing Over 50,000,000 emails Read 9 Oct 2026 · impressionwise.com

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