Fix Email Deliverability Fast with DKIM, SPF, DMARC

SPF: Sender Policy Framework

SPF (Sender Policy Framework) is an email authentication standard that helps mailbox providers verify whether a message was sent by an authorized server on behalf of your domain.When a receiving server such as Gmail or Outlook processes your email, it checks your domain’s DNS to confirm that the sending server is permitted to send mail using your domain name.

If the sending server is not authorized, the message may be flagged as suspicious, routed to spam, or rejected entirely. As a result, an incorrect or missing SPF record can directly impact inbox placement and sender reputation. While SPF alone does not guarantee inbox placement, it plays a critical role in establishing sender legitimacy and reducing spoofing and unauthorized use of your domain.

DKIM: DomainKeys Identified Mail

DMARC: Domain-based Message Authentication, Reporting & Conformance

DMARC is an email authentication policy layer that works on top of SPF and DKIM. It tells receiving mail servers how to handle messages that fail authentication checks and provides visibility into how your domain is being used across email systems. By enforcing a consistent policy, DMARC helps mailbox providers distinguish legitimate emails from spoofed or fraudulent messages, protecting both inbox placement and brand reputation.

In addition to improving deliverability, DMARC plays a key role in preventing phishing, reducing domain abuse, and giving senders insight into unauthorized email activity. When combined with proper SPF and DKIM authentication, DMARC acts as a trust framework that strengthens sender credibility and shields your brand from misuse.

• SPF record exists and is valid
• DKIM is signing outgoing mail
• DMARC exists (start with p=none)
• SPF/DKIM alignment is correct
• Unsubscribe link is present and functional
• Send rate is controlled (avoid spikes)
• Contact list is cleaned (remove invalid addresses)
• Track bounces and suppress repeated failures

How Gersuz helps you Fix Deliverability Faster

If you want fewer manual checks and more consistency, build deliverability into your workflow.

1) Verify DKIM/SPF/DMARC Before you Send

Gersuz’s Anti‑Spam Service includes DNS verification for DKIM, SPF, and DMARC so issues are caught before a campaign goes out ---> 🔗Explore the Gersuz Anti‑Spam Service

2) Clean your list to Protect Sender Reputation

Invalid emails create bounces. Bounces damage trust. Trust drives inbox placement. ---> 🔗Use Email Validity Checker

3) Track what Actually Happens After Send

Deliverability isn’t only “did it land.” It’s “did it engage.”

• 🔗Campaign Tracking (full campaign visibility)
• 🔗Advanced URL Tracking (click-level engagement insight)

🎯Conclusion: Deliverability is a Trust System

SPF, DKIM, and DMARC are not optional if you send serious volume. They’re the fastest way to prove legitimacy and reduce spam risk.

Long-term inbox placement is built on:

• Authentication + alignment
• Clean lists
• Controlled sending
• Real engagement tracking

Deliver smarter. Stay trusted. Grow faster :)