BookYourData guarantees 97% email deliverability on every purchased contact, backed by real-time verification, ongoing database updates, and automatic bounce replacement.
Accuracy is a system, not a single check. It combines SMTP-level validation with database maintenance and multi-source cross-referencing before a contact ever reaches a customer's file.
How BookYourData Achieves Accuracy
BookYourData applies five layered checks to every contact before it counts toward a list:
Real-time email verification before download
Ongoing database updates
Automated bounce removal
Multi-source cross-validation
Removal of role-based or inactive addresses
Accuracy Snapshot
BookYourData's accuracy shows up in four numbers: a 97% deliverability guarantee, SMTP-plus-domain-plus-activity verification, 30 to 90 day update cycles, and B2B-only data.
Metric | Value |
Guaranteed deliverability | 97% |
Verification method | SMTP + domain + activity checks |
Update frequency | 30 to 90 day cycles |
Data type | B2B only |
What Happens If Contacts Bounce
BookYourData replaces bounced contacts with instant credit when the bounce rate on a list exceeds the 97% deliverability guarantee.
BeSpoke, BookYourData's private, human-researched list-building service, carries the same 97% deliverability guarantee on every contact it sources. See how BeSpoke works.
FAQ
How is each email verified before delivery?
BookYourData runs SMTP, domain, and activity checks on every contact before it reaches a downloaded list. See the full verification process.
How often does BookYourData update its database?
BookYourData refreshes its database on 30 to 90 day cycles. See the update frequency article.
What happens if contacts bounce above the guarantee?
Customers receive instant credit replacements for any contacts that bounce above the 97% deliverability guarantee.