Make every email from your domain trusted, authenticated, and delivered.

s2s sets up and manages DMARC for your business, so legitimate mail reaches the inbox, impersonators are locked out, and your brand keeps the reputation you have earned.

Fully managed setup, monitoring, and enforcement — no in-house expertise required.
Free Domain Check

Analyze your domain’s security

See where your email authentication stands across SPF, DKIM, and DMARC — in one click.

90%

of cyberattacks begin with email — DMARC closes the door most attackers walk through.

3

protocols working together — SPF, DKIM, and DMARC — to verify every message you send.

1

partner managing it end to end, so your team never has to touch a DNS record.

What DMARC does for your business

DMARC works alongside SPF and DKIM to confirm that email claiming to come from your domain is actually yours. Mail that passes is delivered with confidence; mail that fails is quarantined or rejected before it reaches anyone.

🛡️

Stops impersonation

Lock cybercriminals out of your domain so they can’t send phishing or spoofed email under your name.

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Lands in the inbox

Authenticated mail — both transactional and promotional — reaches recipients instead of the spam folder.

Protects your reputation

A trusted sending domain keeps the brand confidence you’ve built across every customer interaction.

Before s2s, and after

The same domain, the same email volume — with a level of control and trust you didn’t have yesterday.

Without managed DMARC

  • Anyone can spoof your domain to run phishing scams.
  • Legitimate email quietly slips into spam folders.
  • No visibility into who is sending mail as you.
  • Compliance auditors flag unprotected domains.
  • DNS records and policy tuning fall on your team.

With s2s

  • Impersonators are blocked at enforcement.
  • Inbox placement improves for the mail you depend on.
  • Full reporting on every source sending as your domain.
  • A clear, demonstrable answer for compliance reviews.
  • Setup and ongoing management handled for you.

Increasingly, DMARC is a requirement — not an option

Major mailbox providers now expect DMARC from senders, and frameworks like PCI DSS v4.01 have made it mandatory for organizations handling cardholder data. Across the public and private sectors, demonstrating secured email has become a baseline auditors look for. s2s gets you there and keeps you there.

Securing your domain, end to end

From first configuration to full enforcement, s2s manages the entire DMARC lifecycle.

Managed setup
Complete configuration of DMARC, SPF, and DKIM — from first record to full enforcement — aligned with best practices.
Monitoring & reporting
A clear view of exactly who is sending email using your domain, with unauthorized sources identified and blocked.
Real-time threat alerts
Instant notification the moment someone attempts to impersonate your domain, so action happens fast.
Improved deliverability
Legitimate transactional and promotional email lands in the inbox rather than the spam folder.
Brand & reputation protection
Your brand shows up trusted alongside every authenticated message you send.

Made for businesses of every size

Whether you run finance, IT, or the whole operation, s2s makes email security one less thing to manage.

Finance

Predictable, compliant, audit-ready

Meet email security requirements for compliance reviews without adding headcount or surprise costs.

IT

Off your plate, fully managed

Skip the DNS tuning and policy guesswork. s2s handles configuration, monitoring, and enforcement.

Operations

One partner, one point of contact

Protect every location’s email under a single managed service, the same way s2s simplifies your connectivity.

Four steps to a protected domain

1

Scan

Run a free domain check to see exactly where your SPF, DKIM, and DMARC stand today.

2

Configure

s2s sets up and aligns your records, moving you safely toward full enforcement.

3

Monitor

We watch every sending source and alert you the moment something looks wrong.

4

Enforce

Impersonators are blocked, deliverability improves, and your domain stays protected.