How to Set Up DMARC on Hostinger and Secure It from Spoofing
Have you witnessed attackers sending phishing emails using your company's domain for three weeks straight? You know what the scary part is? AI-powered phishing that completely matches the company's domain and familiar writing style.
Have you witnessed attackers sending phishing emails using your company’s domain for three weeks straight? You know what the scary part is? AI-powered phishing that completely matches the company’s domain and familiar writing style.
Imagine one person fulfilling the request for the “urgent payment request” that looked identical to their legitimate invoices. It is more than a financial loss.
If your business is running its email through Hostinger, don’t assume that your business is secure. Most Hostinger users are unaware that without proper email authentication, their domain is essentially a blank check for cybercriminals.
You can opt for Hostinger DMARC setup to build a digital fortress around your domain. Setting up DMARC is not a long process, and it will save you from destroying your reputation.
What is DMARC and Why Does It Matter for Hostinger?
DMARC (Domain-based Message Authentication, Reporting & Conformance) is a bouncer for your email domain. It instructs receiving email that if someone claims to be sending from @yourcompany.com, verify its legitimacy first.
Without DMARC, your business email domain can be misused. Cyber attackers can pretend to be your employees and commit burglary of sensitive data. That’s where DMARC helps you get authentication at the door.
However, DMARC doesn’t work alone. It relies on two other protocols, SPF and DKIM, to verify email authenticity. DMARC is the policy that decides what to do when those checks fail.
For Hostinger users, this matters more than you might think. Unlike enterprise email platforms that often include anti-spoofing features out of the box, Hostinger gives you the hosting infrastructure but leaves email security configuration up to you. That’s both good news (you have control) and concerning news (most people don’t know they need to configure it).
Prerequisites for Setting Up DMARC on Hostinger
Don’t worry. You won’t need to become a DNS expert overnight. But you will need a few things in place:
Hostinger Admin Access
You’ll need complete access to your Hostinger control panel (hPanel), especially the DNS Zone / DNS Management sections. This access is vital for creating, editing, or deleting DNS records such as SPF, DKIM, and DMARC.
DNS Management
Make sure you can reach the DNS Zone Editor (or cPanel Zone Editor if using Hostinger’s cPanel environment). That’s where you’ll add or modify the SPF, DKIM, and DMARC records.
SPF and DKIM Setup
DMARC builds on SPF and DKIM. If you haven’t set these up yet, DMARC won’t have anything to enforce. Most Hostinger business email setups should have basic SPF configured, but it’s worth double-checking.
Step-by-Step Guide: Setting Up DMARC on Hostinger Business Email
Hostinger DMARC setup is one of the simplest yet most powerful steps you can take to stop email spoofing and protect your domain’s reputation.
Log in to Hostinger Control Panel
Visit Hostinger’s official site and click “Log In,” or go directly to your account’s hPanel. Enter your credentials to access the dashboard. Make sure you have control panel privileges to manage DNS records, especially if you’re not the account owner.
Navigate to DNS Settings
In hPanel, go to Emails → Manage Email, then select Connect Domain or Message Authentication depending on your layout. If that section isn’t visible, head to Hosting → DNS Zone Editor to manage DNS entries directly.
Create DMARC Record in DNS
Click “Add Record” and select “TXT” as the record type. For the Host/Name field, enter: _dmarc. In the Value field, paste your DMARC policy. For example:
Leave TTL as default or adjust (e.g., 3600 or 14400 seconds). For users of Hostinger Reach, it may auto-configure DMARC, SPF, and DKIM if your domain points to Hostinger nameservers. If not, you’ll add them manually as described.
Save and Verify
DNS propagation typically completes within minutes to 24 hours, though in some cases it may take up to 72 hours. Use ThreatCop’s DMARC Record Checker to confirm that your DMARC record is published and correct. This tool retrieves your domain’s configuration and flags any missing or misconfigured tags.
Check your domain’s security today with Threatcop’s tool to ensure it’s protected from spoofing.
How to Check if Your Hostinger Email Domain Can Be Spoofed
If you use Hostinger Business Email and are concerned about being spoofed. Checking your DMARC record with ThreatCop’s free DMARC Record Checker is a straightforward and trustworthy method. It helps you analyze how to determine whether your domain is protected against email spoofing.
If there is a DMARC record in place on your domain
What version of the DMARC protocol is being used
What effective policy does your domain have (i.e., p=none, p=quarantine, or p=reject)
Any other DMARC tags, such as “rua,” can help you determine how your reporting is set up.
Test your Hostinger domain now using Threatcop’s tool to check if it is susceptible to spoofing and take actions to secure your email.
Common Mistakes to Avoid When Setting Up DMARC
Hostinger DMARC setup can be powerful, but small mistakes can impact your email security or block legitimate emails. Here are the most common mistakes to avoid:
Incorrect DMARC Record Format
DMARC is strict with syntax, and a small error, like forgetting a semicolon or using the wrong tag, will prevent mail servers from reading the record correctly.
What is the effect? Either your domain remains unprotected, or your legitimate messages are treated as spam. So run every new record through a syntax checker before deploying it.
Skipping SPF/DKIM Setup
You read about DMARC and go straight to the configuration, only to discover it does not work. DMARC authenticates emails based on SPF and DKIM checks. If those are not configured correctly, there will be no process for DMARC to follow.
Fix: Confirm your SPF record includes Hostinger’s email servers. Example: v=spf1 include:spf.hostinger.com ~all
Not Reading DMARC Reports
Those reports aren’t just nice-to-haves; they’re your early warning system. If you’re seeing forensic reports about failed authentication, someone could be attempting to spoof your domain. If you’re seeing aggregate reports with high rates of failure, your legitimate email setup may have some issues that need attention.
Fix: Set up a separate email address for DMARC reports and review them every week.
Best Practices for Maintaining Email Security with DMARC
Establishing DMARC isn’t a “set it and forget it” solution. Email security takes ongoing maintenance, especially as your organization grows and your patterns of email change and evolve.
Monitor DMARC Reports Regularly
Those weekly aggregate reports tell a story about your email ecosystem. Are you seeing authentication failures? New email sources sending emails on your behalf? Potential spoofing attempts? Find 10 minutes a week to read through your aggregate reports.
Gradually Strengthen Your DMARC Policy
Once you have verified that legitimate emails are authenticating properly (usually after 2-4 weeks of monitoring), start considering moving from p=none to p=quarantine. After another couple of weeks of no issues, you can implement p=reject for the protection you want.
Layer Your Email Security
DMARC will prevent spoofing, but it is not a comprehensive email security solution. You should consider DMARC as one layer of a comprehensive security plan that will include:
Phishing awareness training for your employees
Advanced threat protection software
Continuity of regular security assessments
Incident response plans
How DMARC Improves Your Hostinger Business Email Security in the Long Run
DMARC can authenticate your mail, tell receivers how to handle failures, and provide visibility into what sources are sending on your behalf. DMARC will improve your security posture over time.
Improved Reputation
As a result of your messages passing SPF/DKIM validations and aligning under DMARC, mailbox providers will realize that emails from your domain are legitimate. The stronger your reputation, the more it can protect the sender’s reputation, affecting deliverability. DMARC feedback reports will also help you identify misconfigured senders to fix, which can harm your domain’s reputation.
Preventing Phishing & BEC
DMARC allows you to instruct receivers to quarantine/reject all messages from your domain that fail authentication and alignment. Mobius will decrease spoofed email successful delivery via receivers, and one of the main enablers for phishing and Business Email Compromise has been addressed. DMARC will not ruin every type of fraud, but the act of enforcing a policy will lessen the probability that a threat actor will be able to impersonate your domain in inboxes.
Compliance Support (GDPR/HIPAA)
Although DMARC may not necessarily be required under either GDPR or HIPAA, it assists businesses in remaining compliant by making their email a safer environment. If employees practice DMARC, it is able to reduce the impersonation risk and minimize the potential for leaking sensitive information, as well as assist with the “security of processing” clause under GDPR.
Many government and industry bodies advocate the use of DMARC as part of a good setup for email security. There are security advisories that indicate SPF, DKIM, and DMARC are best practices for the healthcare industry to combat phishing and Business Email Compromise (BEC) that lead to data breaches.
Conclusion: Securing Your Hostinger Business Email from Spoofing
Email spoofing can confuse your customers, damage your brand, and expose sensitive information to third parties. Therefore, it is important to secure your Hostinger business email.
Hostinger DMARC setup allows only trusted emails to be sent from your domain while blocking attackers who attempt to impersonate you, thus helping to protect your reputation as well as keep your communication secure.
If you want to be sure your domain is safe, you should use Threatcop’s spoof check tool to carry out a quick security test.
Secure your Hostinger email today. Use Threatcop’s email spoof check tool to check if your domain is safe from spoofing and implement DMARC for total protection.
Shikha Mishra is responsible for driving the growth and adoption of TDMARC, a flagship product of Threatcop, across India, the Middle East, APAC, and the UK region. With her expertise, she helps organizations safeguard their domains so that no hacker can misuse them to send fraudulent emails, thereby protecting both their brand and reputation. She is passionate about enabling businesses to simplify the complexities of outbound email security through TDMARC’s comprehensive solution, allowing them to stay focused on what matters most to their success.
Shikha Mishra is responsible for driving the growth and adoption of TDMARC, a flagship product of Threatcop, across India, the Middle East, APAC, and the UK region. With her expertise, she helps organizations safeguard their domains so that no hacker can misuse them to send fraudulent emails, thereby protecting both their brand and reputation. She is passionate about enabling businesses to simplify the complexities of outbound email security through TDMARC’s comprehensive solution, allowing them to stay focused on what matters most to their success.
