Transparent IMAP/SMTP Proxy

Your email workflow, enhanced with superpowers

Maskwire is a transparent proxy between your email client and server. Add smart features like leak protection, automatic alias replies, and more.

Quick Setup

# Configure your email client
IMAP Server: imap.maskwire.com
SMTP Server: smtp.maskwire.com
Ports: 143 (IMAP), 587 (SMTP)
Security: STARTTLS
            
Leak Protection
Zero-Knowledge Security
Works with Any Client
Powerful Features

Email transformations that work with any client

Maskwire acts as a transparent proxy between your email client and server, adding smart features and protection without changing your workflow.

Leak Shield Protection

Define sensitive patterns that should never leave your inbox. Maskwire automatically redacts personal data, passwords, or confidential information before sending.

Regex-based pattern matching
Automatic content redaction

Smart Alias Reply

Reply from any email alias automatically. When someone emails [email protected], just hit reply - Maskwire ensures it's sent from the correct address.

Automatic sender restoration
Works with catch-all domains

Sender Rewriting

Automatically rewrite your sending address based on rules. Perfect for rotating addresses or maintaining separate identities for different purposes.

Date-based wildcards
Custom mapping rules

Smart Unsubscribe

Unsubscribe from newsletters while maintaining context. Maskwire rewrites unsubscribe links to ensure they work correctly with your aliases.

List-Unsubscribe rewriting
Maintains sender context

Delete Protection

Never lose important emails again. Maskwire intercepts delete operations and archives emails instead of permanently deleting them.

Redirect to Archive
Configurable destination

Message Age Limiter

Keep your inbox focused by hiding older messages. Perfect for maintaining a clean workspace while preserving access to archives.

Configurable age cutoff
Per-mailbox patterns

Your Security is Our Foundation

Zero-Knowledge Authentication: Your email passwords are encrypted with a cryptographic key that only you possess. Maskwire has literally no way to decrypt or access your credentials.

Authentication happens only when you login through your email client, ensuring maximum security. We can't login as you, read your emails, or access your accounts - even if we wanted to.

Client-side encryption
No password storage
Pass-through authentication

Start with one feature free

Try Maskwire with one feature enabled for free. Unlock all features for just $3/month.

Get Started Free
Technical Architecture

Built for power users, designed for simplicity

Maskwire is built to solve real email problems without changing your workflow.

7
Smart Features
1
Feature Free
$3/mo
All Features
Zero
Emails Stored

How Maskwire protects your privacy

Privacy-First Design

We never store your emails. All processing happens in-transit as a transparent proxy between you and your mail server.

Zero-Knowledge Authentication

Your passwords are encrypted with a cryptographic key. Maskwire has no way to decrypt or access your credentials - authentication only happens when you login through your email client.

Real-Time Processing

Lightning-fast proxy with minimal latency. Privacy features applied in real-time without delaying your emails.

Architecture Overview
┌─────────────┐         ┌─────────────┐
│ Email Client │◄────────┤  Maskwire   │
└─────────────┘  TLS    └──────┬──────┘
                               │
                          ┌────┴────┐
                          │ Privacy │
                          │ Engine  │
                          └────┬────┘
                               │
┌─────────────┐         ┌──────┴──────┐
│ Mail Server  │◄────────┤ Transparent │
└─────────────┘  TLS    │    Proxy    │
                        └─────────────┘

• No email storage
• In-transit processing
• TLS encryption
• Audit logging

Built by Email Power Users

We built Maskwire to solve our own email problems. Join our community to help shape the future of email workflows.

Join Discord

Ready to take control of your email privacy?

Start free with one feature enabled. Upgrade to unlock all transformations for just $3/month.

1 feature free forever
$3/month for all features
5-minute setup

Questions? Email us at [email protected] or check out our documentation