Email security audit: what it includes and what it typically finds
2 min read · Updated November 8, 2026
An email security audit reviews how safely a company handles email: exposed addresses, authentication records such as SPF, DKIM and DMARC, two-factor authentication, forwarding rules and offboarding. It ends with a ranked list of fixes so a small team knows what to do first.
What the audit covers
- ✓Exposure: company addresses that appear in known breaches.
- ✓Authentication: SPF, DKIM and DMARC records for your domains.
- ✓Access: two-factor authentication, admin accounts and shared mailboxes.
- ✓Mailbox rules: forwarding and hidden filters that could leak mail.
- ✓Lifecycle: whether former employees still have access.
Typical findings
- ✓Employee addresses in old breaches with reused passwords.
- ✓No DMARC policy, so the domain is easy to spoof.
- ✓Accounts without two-factor authentication, including admins.
- ✓Stale accounts that nobody owns.
See how exposed your team’s email is
Leaked work emails fuel phishing and account takeover. Review your company’s exposure with a corporate audit.
What you get at the end
A good audit gives a prioritised plan, not just a list of problems. The fixes with the biggest impact for the least effort, such as enforcing two-factor authentication and removing stale accounts, come first.
Start with the exposure check
If you want to start small, review which company addresses appear in known breaches. That shows who is most at risk today and where to focus first.
Frequently asked questions
How long does an email audit take?+
A basic exposure and configuration review can be done quickly for a small company. Larger organisations take longer.
Do we need technical staff?+
Not to read the results, but fixing DNS records or admin settings may need whoever manages your domain and email.
How often should we repeat it?+
At least once a year, and after major changes such as moving email providers.
Stop guessing. Check your email in seconds.
The Leakill scan looks for your email address in known breach records and delivers a detailed report: the incidents, dates, sources, the kinds of data involved and practical next steps. It is a one-time $1.99 payment, not a subscription.
A breach match is a warning signal, not proof that someone has access to your account today. No public database covers every breach, so a clean result lowers risk without guaranteeing safety.