Acceptable Use Policy

Last updated: February 10, 2026 Back to Legal Hub

Disclaimer: This document should be reviewed by qualified legal counsel before publication. It is drafted based on regulatory research and industry best practices but does not constitute legal advice.

1. Purpose

This Acceptable Use Policy ("AUP") defines the rules for using the RelayPost email delivery platform. It exists to:

  • Protect shared sending reputation — RelayPost's IP addresses are shared among customers. One sender's abuse degrades deliverability for everyone.
  • Comply with email regulations — CAN-SPAM (US), CASL (Canada), GDPR (EU)
  • Prevent harm — Protect recipients from spam, phishing, and malicious content
  • Maintain service quality — Ensure reliable delivery for all customers

This AUP is incorporated into the Terms of Service.

Our philosophy: We want you to succeed at email. These rules aren't arbitrary restrictions — they're the practices that lead to high deliverability and happy recipients. Following them benefits you as much as it benefits us.

2.1 The Golden Rule

Every recipient must have given consent to receive your emails. This is both a legal requirement and the foundation of good deliverability.

2.2 Types of Acceptable Consent

Consent TypeDescriptionAcceptable For
Transactional relationshipRecipient has an existing business relationship with youTransactional emails (receipts, password resets)
Explicit opt-inRecipient actively signed up to receive your emailsMarketing and promotional emails
Double opt-in (recommended)Recipient confirmed via a confirmation emailMarketing emails — best practice

2.3 What Is NOT Valid Consent

  • Pre-checked opt-in boxes
  • Consent buried in terms of service
  • Purchasing or renting email lists
  • Scraping email addresses from websites or social media
  • Harvesting addresses from public records or WHOIS data
  • Adding people because they gave you a business card

3. Prohibited Content

You may not use RelayPost to send:

  • Phishing — emails designed to trick recipients into revealing credentials or personal data
  • Malware — emails containing or linking to viruses, trojans, or ransomware
  • Spoofing — emails that misrepresent the sender's identity or forge headers
  • Spam — unsolicited bulk or commercial email sent without consent
  • Harmful content — content promoting violence, hatred, or exploitation of minors
  • Illegal content — content that violates applicable law

3.1 Restricted Content (Prior Approval Required)

The following require prior written approval from RelayPost (contact [email protected]):

  • Pharmaceutical or health-related promotions
  • Financial services or investment offers
  • Gambling or lottery promotions
  • Cannabis or CBD products
  • Cryptocurrency or NFT promotions
  • Adult content

4. Sending Practices

4.1 Domain Verification (Required)

You must verify ownership of every domain you use by configuring DKIM and SPF DNS records. We strongly recommend DMARC. Emails from unverified domains will be rejected.

4.2 Sender Identification

Every email must use a valid, verified sender address, include accurate header information, clearly identify you as the sender, and include a valid physical mailing address (CAN-SPAM).

4.3 Unsubscribe Mechanism

For marketing emails, you must include a clear unsubscribe link, honor requests within 10 business days (we recommend immediately), and not require login to unsubscribe.

4.4 List Hygiene

PracticeRequirement
Remove bouncesRemove hard-bounced addresses immediately. Do not circumvent RelayPost's suppression list.
Process complaintsRemove recipients who mark your email as spam
Remove inactiveClean your list of recipients who haven't engaged in 6+ months
Validate addressesUse email validation before importing large lists
No purchased listsNever send to purchased, rented, or scraped lists

4.5 Suppression List Compliance

RelayPost maintains per-organization suppression lists. You must not attempt to remove addresses to re-send, upload known-bad addresses, or create new organizations to bypass suppressions.

5. Rate Limits and Volume

PlanMonthly VolumeDaily Limit
Free1,000 emails1,000/day
Starter10,000 emailsNo cap
Pro100,000 emailsNo cap

If you're sending from a new domain, gradually increase volume over 2–4 weeks. Avoid sending your entire monthly volume in a single burst.

6. Monitoring and Enforcement

6.1 What We Monitor

MetricThresholdWhy It Matters
Bounce rate> 5% triggers reviewHigh bounces damage sender reputation
Spam complaint rate> 0.1% triggers reviewComplaints can get our IPs blocklisted
Spam trap hitsAny hits trigger reviewIndicates purchased/scraped lists
Content patternsAutomated scanningDetecting phishing and malware

6.2 Enforcement Actions

LevelActionWhen
1. WarningEmail notification with remediation stepsFirst minor violation
2. ThrottlingSending rate reduced temporarilyContinued issues after warning
3. SuspensionSending paused; account access retainedSerious or repeated violations
4. TerminationAccount terminatedSevere violations (phishing, malware)

We reserve the right to immediately suspend without warning for phishing, malware distribution, spam trap hits, or any activity that threatens our infrastructure.

6.3 Appeals

Email [email protected] with your Organization ID. We will review within 5 business days.

7. Your Responsibilities

  • Obtain proper consent from all recipients
  • Verify your domains with proper DNS records
  • Include unsubscribe links in marketing emails
  • Include your physical address in commercial emails
  • Honor unsubscribe requests promptly
  • Maintain list hygiene
  • Respect suppression lists
  • Comply with CAN-SPAM, CASL, GDPR, and other applicable laws
  • Keep bounce rates below 5% and complaint rates below 0.1%
  • Warm up new domains gradually
  • Secure your API keys and SMTP credentials

8. Reporting Abuse

If you receive unwanted email sent through RelayPost or become aware of abuse: email [email protected] with full email headers and relevant details.

9. Changes to This Policy

We will notify you by email at least 14 days before material changes. Changes to prohibited content or enforcement thresholds will have at least 30 days' notice.

10. Contact Us