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Knowledge Base

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Browse our knowledge base for answers, guides, and tutorials.

General

3 articles
Understanding message statuses
Learn what each message status means and what actions you can take.
How quarantine works
Why emails end up in quarantine and how to review, release, or delete them.
Managing contacts and unsubscribing from newsletters
How contacts are discovered, categorized, and how one-click unsubscribe works.

Account

3 articles
Creating your account and verifying your email
Step-by-step registration, verification code, and getting started.
Setting up two-factor authentication
Secure your account with TOTP-based 2FA and backup codes.
Understanding plans, pricing, and usage limits
Overview of all plans, specifications, quotas, and how to upgrade.

Mailboxes

3 articles
Connecting your first mailbox
How to connect Gmail, Outlook, iCloud, or any IMAP provider to Cleanbox.
Managing mailbox settings and folders
Configure IMAP settings, create folders, and enable or disable mailboxes.
Connecting Gmail and Outlook with OAuth
Specific walkthrough for Gmail and Outlook OAuth authorization.

Aliases

3 articles
Creating and managing email aliases
What aliases are, how to create them, and managing them from your dashboard.
Replying from your alias
How bidirectional privacy works when replying from an alias.
Setting a spam threshold per alias
Customize spam sensitivity for each alias individually.

Domains

3 articles
Adding and verifying a custom domain
Step-by-step guide to adding your domain and verifying DNS records.
DNS configuration: MX, TXT, and SPF records
Detailed explanation of each DNS record required for Cleanbox.
Managing multiple domains from one dashboard
How to manage aliases, relay, and filters across multiple domains.

Relay

3 articles
What is Relay and how does it protect your inbox?
How Relay filters spam and threats before they reach your mail server.
Setting up Relay for your domain
Step-by-step: MX records, SMTP destination, and testing your setup.
Configuring per-address relay settings
Custom spam thresholds and configuration for each protected address.

Filters

3 articles
Creating your first filter rule
How to build a filter with conditions and actions.
Advanced filtering: combining conditions and groups
Using ANY/ALL logic, regex, and AI categories for complex rules.
Testing and reordering your filters
Test filters against existing messages and manage filter priority.

Shield

3 articles
What is Shield and when should you use it?
Overview of Shield features: rate limiter, snoozer, and gatekeeper.
Setting up rate limits and delivery windows
Configure rate limiting and delivery scheduling per alias.
Using Gatekeeper mode for maximum protection
Whitelist-only delivery for your most sensitive aliases.

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