HackerOne · Bug Bounty

SMTP2GO BBP Bug Bounty Program

Complete guide to SMTP2GO BBP's bug bounty program on HackerOne. View in-scope assets, reward amounts, response times, and tips for finding vulnerabilities.

Program Overview

SMTP2GO BBP runs a bug bounty program on HackerOne. The program has 3 in-scope assets and is managed by HackerOne's triage team.

3
In-Scope Assets
15h
Avg Response
99%
Efficiency
26d
Avg Bounty Time
22d
Avg Resolve

In-Scope Assets

AssetTypeMax SeverityEligible
api.smtp2go.comURLCriticalBounty
app.smtp2go.comURLCriticalBounty
smtp2go.comURLCriticalBounty

Out-of-Scope Assets

  • support.smtp2go.com

Tips for Hacking SMTP2GO BBP

  1. Read the policy — Understand what's in scope, out of scope, and any specific testing restrictions before you start.
  2. Enumerate the attack surface — Use subdomain enumeration and directory bruteforcing to map all accessible endpoints.
  3. Focus on high-impact bugs — Look for SQL injection, SSRF, and IDOR vulnerabilities first.
  4. Test authentication flows — Check for OAuth misconfigurations and CSRF in login/signup flows.
  5. Write clear reports — Include steps to reproduce, impact assessment, and suggested remediation. Use Burp Suite to capture evidence.

Frequently Asked Questions

How do I start hacking SMTP2GO BBP?

Sign up on HackerOne, read the program policy carefully, review the in-scope assets listed above, and start testing. Always stay within scope and follow responsible disclosure guidelines.

Does SMTP2GO BBP pay bounties?

Yes, SMTP2GO BBP offers monetary rewards for valid security vulnerabilities.

What types of vulnerabilities does SMTP2GO BBP accept?

SMTP2GO BBP accepts reports for vulnerabilities found in their 3 in-scope assets. Common accepted vulnerability types include XSS, SQL injection, SSRF, IDOR, authentication bypass, and RCE. Check the program policy for specific exclusions.