Certified Email Service

Certified email delivery with legal proof

MailProof routes your emails through a certified relay that records the full SMTP delivery chain. You get a timestamped certificate proving your message reached the recipient's mail server — admissible in disputes, compliance audits, and legal proceedings. Ideal for delivering contracts and agreements, serving termination or cancellation notices before deadlines, meeting GDPR and regulatory notification requirements, and providing landlords and letting agents with proof of tenant communications.

Send from your own email address
Recipients see your real address, not ours. Full brand consistency for professional communications.
PDF certificate of delivery
Unique certificate ID, tracking code, full delivery timeline, and attachment manifest in every certificate.
Real-time tracking, verification & read confirmation
Every stage timestamped. Know when your email is delivered and when it's opened. Recipients can independently verify delivery online.
Attach contracts, invoices & documents
Up to 10MB of attachments per email. File names are recorded on the certificate as evidence of what was sent.
AES-256 encrypted in transit & at rest
All data is protected by TLS 1.3 in transit and AES-256-GCM encryption at rest. Your message content is only accessible to you.
Organisations
Sent Today
Certified Total
Free Emails
10/mo
Certified
AES-256
TLS 1.3
PDF Proof
Real-Time

Four steps to certified delivery

No special software or plugins needed. Use your own email address. Attachments fully supported.

01
Create your account
Sign up with the email address you want to send from. No verification delays — you're ready in seconds.
02
Compose & attach
Write your email, add attachments (up to 10MB), and hit send. Your message goes through our certified relay.
03
Delivery certified
We track the full delivery chain and confirm acceptance by the recipient's mail server with timestamps.
04
Certificate issued
You receive a PDF certificate with tracking ID, timestamps, and full delivery proof. Recipients can verify online.

Everything you need for certified email

Built for professionals who need proof that their communications were delivered.

Use Your Own Email
Send certified emails from your real business email address. Recipients see your address, not ours. Full brand consistency.
PDF Certificates
Every confirmed delivery generates a formal PDF certificate with unique IDs, timestamps, and full delivery chain evidence.
Real-Time Tracking & Read Confirmation
Follow your email through every stage: submitted, dispatched, delivered, confirmed, and opened. Know exactly when your recipient reads your message.
Attachment Support
Attach contracts, invoices, notices, or any document up to 10MB. Attachment names are recorded on the certificate.
Public Verification
Recipients can independently verify delivery at any time. No account needed — just enter the tracking code or certificate ID.
AES-256 Encryption
Your emails are protected by TLS 1.3 in transit and AES-256-GCM encryption at rest. Message content is only accessible to the account holder.

Simple, transparent pricing

Start with 10 free certified emails every month. Only pay when you need more.

Free
£0 /month
10 certified emails included every calendar month
10 certified emails per month
PDF delivery certificates
Real-time tracking & read confirmation
Attachments up to 10MB
Send from your own email address
Public verification for recipients
Most Popular
Pay As You Go
£0.50 /email + VAT
After your 10 free emails. Buy credits in bulk and save.
Everything in Free
Unlimited certified emails
Pre-pay credit bundles via PayPal
Bulk discount: 100 emails for £45 + VAT
Sender confirmation with PDF attached
Custom email signature / footer

When you need proof it was sent

Any time a dispute, deadline, or legal requirement means you need evidence your message arrived.

Contract & Agreement Delivery
Send contracts with certified proof the recipient received them. The certificate serves as legal evidence of delivery with exact timestamps.
Deadline-Sensitive Notices
Prove that termination notices, cancellations, or time-sensitive communications were delivered before the deadline.
Regulatory Compliance
Meet regulatory requirements for documented communications. GDPR notifications, financial disclosures, and compliance updates.
Landlord & Tenant Communications
Send rent increase notices, maintenance notifications, or eviction warnings with indisputable proof of delivery.

Common questions

How does MailProof certify delivery?
When you send an email through MailProof, it's routed through our certified relay servers. We record the full SMTP handshake with the recipient's mail server, including acceptance confirmations and timestamps. This data forms the basis of your delivery certificate.
Can I use my own email address?
Yes. When you sign up, you register with your real email address. All certified emails are sent from your address — recipients see your name and email, not a generic MailProof address.
What proof do I get?
You receive a formal PDF certificate containing the certificate ID, tracking code, sender and recipient details, subject line, attachment names, and the full timestamped delivery timeline. You also get a confirmation email with the PDF attached.
Can the recipient verify delivery independently?
Yes. Every certified email includes a tracking code and verification link. Anyone can visit our public verification page to confirm delivery status — no account required.
Can I send attachments?
Yes. You can attach files up to 10MB total. Attachment filenames are recorded on the delivery certificate as additional evidence of what was sent.
Is this legally admissible?
MailProof provides strong evidence of email delivery that can be used in disputes, legal proceedings, and regulatory matters. The timestamped delivery chain with unique identifiers creates a documented trail of your communication.

Start sending certified emails today

Create your free account and send your first certified email in under a minute. No software to install, no configuration needed.