Free online address book
Collect addresses once. Send real mail anytime.
Create a private request link for holiday cards, weddings, birthdays, baby announcements, thank-yous and the people you actually want to reach by mail.
Recipients do not need an account. You review new addresses before saving them.
Create
Create an address request
Start with the occasion: holiday cards, wedding invitations, baby announcements, birthdays, graduation mail, thank-yous or a simple family address book.
Share
Send your personal link
Share your address request through WhatsApp, email, SMS or any channel your contacts already use. They can add their address without creating an account.
Collect
Contacts fill in their own details
Everyone enters their own postal address, birthday and optional email. You review new submissions before they become saved contacts.
Remember
Get birthday reminders on WhatsApp
Save birthdays with your contacts and PieterPost can remind you on WhatsApp in time to send a real card, not a rushed last-minute message.
New:Did you know you can even send those cards by sending a message through WhatsApp? See WhatsApp postcards
Use
Use addresses for real mail
Send letters and postcards from saved contacts, download your address list, or keep it ready for the next card, announcement, invitation or family update.
See it in action
Watch how addresses flow into Mailbook
The preview shows the full flow: create a request, share the link, and see addresses appear in your private address book.
Preview
Mailbook
Start collecting
Create a request, share the link, and let people fill in their own address details.
What do you want to collect addresses for?
Message
Your contacts see this above the form. Keep it short, clear, and specific about why you are asking for a mailing address.
More about Mailbook
Mailbook online address book
Mailbook is a private online address book for people who want to collect, review, and reuse postal addresses without chasing everyone manually. Create a shareable address request, send the link to friends, family, customers, or colleagues, and let them fill in their own details.
Use Mailbook when the real problem is not designing a card, but getting the right mailing addresses in one place: holiday cards, wedding invitations, baby announcements, graduation announcements, birthday cards, thank-you notes and family updates.
Incoming responses can be reviewed before they become saved contacts. Once saved, you can search your address book, update contact details, export addresses, or send letters and postcards directly from selected contacts.
Your Mailbook is private to your account. People who receive your address request do not need an account to submit their details, and address data is used for your address book and the mail you choose to send.
How it works in 1-2-3
- Create an address request for the occasion or contact list you want to build.
- Share the link through WhatsApp, email, SMS, or any channel your contacts already use.
- Review submitted addresses, save them to Mailbook, and use them for future letters and postcards.
Frequently asked questions
What is Mailbook?
Mailbook is a private online address book that helps you collect postal addresses with a shareable link and keep them ready for future mail.
What can I use Mailbook for?
Use it for holiday cards, wedding invitations, baby announcements, graduation announcements, birthday reminders, thank-you notes, family address lists, or repeat letter and postcard sending.
Do my contacts need an account to add their address?
No. Contacts can open your request link and submit their address details without creating a Pieterpost or Mailbook account.
Can I review addresses before saving them?
Yes. New submissions can be reviewed before they are added to your saved contacts, so you stay in control of your address book.
Can I use saved contacts to send mail?
Yes. Saved Mailbook contacts can be selected when sending letters or postcards, so you do not need to retype addresses every time.
Can I export or manage my address book?
Yes. You can search contacts, update details, remove entries, and export addresses when you need them outside Pieterpost.
Is Mailbook private and secure?
Yes. Your Mailbook is private to your account, address requests are handled securely, and contacts can remove their submitted address through the verification flow.
