Anti-Spam Policy

We take spam seriously.

Every InboxFamily account runs on infrastructure built to block spam, protect your reputation, and keep your inbox clean. Here's how.

Zero tolerance for spam

Sending unsolicited bulk email from InboxFamily is grounds for immediate account termination — no warnings, no second chances. We monitor outbound patterns and act fast to protect every domain on our platform.

How we protect your inbox

Multiple layers of filtering work together to stop spam before it reaches you.

Protection layerWhat it does
DNS blocklists (DNSBL)Checks sender IPs and domains against known spam databases — Spamhaus, Spamcop, Barracuda, and dozens more. Updated automatically.
Bayesian classifierMachine learning filter that learns from spam patterns. Analyzes language, word frequency, and message structure to catch new threats.
Phishing detectionScans URLs for homograph attacks, link spoofing, and known phishing domains. Cross-references OpenPhish and PhishTank databases.
GreylistingTemporarily delays unknown senders. Legitimate servers retry delivery; most spam bots don’t bother.
Sender reputationTracks spam scores by IP, domain, and email address over 30 days. Repeat offenders get blocked automatically.
Automatic IP banningDetects brute-force login attempts, unauthorized relay attempts, and port scanning. Offending IPs are banned instantly.

Email authentication

Every domain on InboxFamily is auto-configured with industry-standard authentication protocols.

SPFVerifies that emails come from authorized servers for your domain.
DKIMCryptographically signs every outgoing message to prove it wasn’t tampered with.
DMARCTells receiving servers how to handle messages that fail SPF or DKIM checks.
ARCPreserves authentication results when messages are forwarded through multiple servers.

Sending limits

Fair-use limits protect your domain reputation and prevent abuse.

LimitThresholdNotes
Messages per mailbox per hour50Plenty for personal use
Messages per mailbox per day300Covers any reasonable family use
Recipients per message50Per individual email
Max attachment size25 MBPer message

Report abuse

If you received spam from an @inboxfamily domain, or if our IP has been added to a blocklist, we want to know. We investigate every report and take action within 24 hours.

Report spamReceived spam from an InboxFamily domain? Forward the original message with full headers to:abuse@inboxfamily.com
Blocklist removalIf our IP ended up on a blocklist, let us know. We’ll investigate and request removal promptly.postmaster@inboxfamily.com
Security issueFound a vulnerability or suspicious activity on our platform? We appreciate responsible disclosure.security@inboxfamily.com

What happens when we detect abuse

We take a graduated approach depending on severity — but reserve the right to act immediately for serious violations.

1
WarningFor minor or first-time issues like accidental bulk sends. We notify the account admin and ask for correction.
2
Sending suspendedOutbound email is disabled for the offending mailbox until the issue is resolved. Incoming mail still works.
3
Account terminationFor deliberate spam, phishing, or repeated violations. The account is closed and the domain is released. No refund.