CONTACTS & LISTS
Confirmed consent with double opt-in.
Mailpro's double opt-in ensures every subscriber has explicitly confirmed they want your emails. This two-step process complies with GDPR and other privacy laws — and it noticeably improves your campaign's effectiveness at the same time.
Proof of consent
GDPR-compliant
Better engagement
HOW IT WORKS
A simple two-step process
1
Initial sign-up
Subscribers fill out your opt-in form — on your website, a social campaign or at an event.
2
Email confirmation
Mailpro sends an automated email asking them to confirm, verifying the address and their intent.
3
Verified & compliant
Once confirmed, details are stored securely — clear evidence of consent for GDPR.
BENEFITS
Why use double opt-in
Enhanced deliverability
Confirming addresses reduces bounces and avoids spam traps, lifting your deliverability.
Better engagement
Subscribers who confirm are more likely to engage, open and convert.
Legal protection
Documented consent is an essential requirement under GDPR for EU residents.
A cleaner list
Only genuine, interested subscribers make it onto your list.
Ready to set it up? Follow our detailed configuration guide, or read more on our GDPR compliance page.
QUESTIONS
Frequently asked questions
What is double opt-in?
A two-step subscription process: after signing up, the subscriber receives an email asking them to confirm. Only confirmed contacts are added, which verifies the address and documents consent.
Why does double opt-in matter for GDPR?
It provides clear evidence of consent, an essential requirement under GDPR for companies dealing with EU residents, and offers a layer of legal protection.
Does it improve deliverability?
Yes. Confirming addresses reduces bounces and avoids spam traps, which improves your sender score and inbox placement — and confirmed subscribers engage more.
Build a list you can trust
Start free and use double opt-in for confirmed, compliant, engaged subscribers.