If you’re running a business or personal site on Hostinger and your emails keep landing in Gmail’s spam folder or disappearing entirely, you’re not alone. It’s one of the most common frustrations with shared hosting email. The short answer is: yes, this is a known issue, and it’s almost always fixable by properly configuring email authentication and improving your sender reputation.
Gmail uses a strict set of checks to decide whether an email should land in the inbox, the spam folder, or be rejected outright. Hostinger’s shared servers share IP addresses with many other users, so if one of those users sends spam, the whole IP can get a bad reputation. Add missing or misconfigured SPF, DKIM, or DMARC records, and Gmail has no way to verify that you’re actually the sender.
This article walks through exactly why this happens and what you can do to fix it.
| Detail | Value |
|---|---|
| Short answer | Hostinger emails often don’t reach Gmail inbox due to missing authentication records or poor IP reputation. |
| Applies to | All Hostinger shared hosting plans with built-in email (Business, Premium, etc.) and Hostinger Business Email accounts. |
| Best for | Users who host their own email on Hostinger and want to fix deliverability to Gmail (and other strict providers). |
| Watch out for | Fixing authentication alone may not be enough if the shared IP is already blacklisted; you may need a dedicated IP or a third-party email service. |
Why Hostinger Emails Are Not Delivered to Gmail Inbox
Gmail filters incoming mail based on three main factors: authentication, reputation, and content. Hostinger emails often fail on the first two. Let’s break down each cause.
1. Missing or Misconfigured SPF, DKIM, and DMARC
Email authentication is the technical handshake that proves a message really came from your domain. Gmail checks three records in your DNS:
- SPF (Sender Policy Framework): Tells receiving servers which IP addresses are allowed to send mail for your domain.
- DKIM (DomainKeys Identified Mail): Adds a digital signature to each email so the recipient can verify it hasn’t been tampered with.
- DMARC (Domain-based Message Authentication, Reporting & Conformance): Tells the receiver what to do if both SPF and DKIM fail (e.g., quarantine or reject).
Hostinger provides defaults for these records, but many users never activate them. If you didn’t manually add the DKIM key or set up a DMARC policy, your emails are essentially anonymous to Gmail. That’s a fast track to spam.
Note: Hostinger’s hPanel has a built-in email deliverability tool that can generate these records for you. But it only works if you’ve pointed your domain’s nameservers to Hostinger. If you’re using a third-party DNS provider, you must copy the records manually.
2. Shared IP Reputation
Hostinger’s shared hosting plans place hundreds of websites on a single server with a single outgoing IP address. If one of those sites sends spam or gets hacked, the IP’s reputation drops. Gmail then distrusts all mail from that IP, including yours.
You can check your IP’s reputation using Google’s Postmaster Tools or third-party blacklist monitors like MXToolbox. If your IP is listed on any common blacklists (Spamhaus, Barracuda, etc.), deliverability to Gmail will suffer until you get it removed.
3. Reverse DNS (PTR Record) Mismatch
Gmail checks that the IP address sending the email has a reverse DNS record that matches the domain in the greeting (EHLO/HELO). Hostinger sets this up automatically for their own mail servers, but if you’re using a custom domain, the PTR record may point to something like host123.hostinger.com instead of mail.yourdomain.com. That mismatch can lower your sender score.
4. Gmail’s Content and Engagement Filters
Even with perfect authentication, Gmail examines the email body and how recipients interact with it. High bounce rates, low open rates, and spam complaints all hurt your reputation. If you’re sending cold emails, newsletters, or transactional messages that trigger Gmail’s spam rules (e.g., excessive links, image-only content, misleading subject lines), they may be filtered regardless of technical setup.
Hostinger’s own email servers also have default rate limits. Sending too many emails too quickly can trigger throttling or temporary blocks.
How to Fix Hostinger Email Deliverability to Gmail
You can resolve most deliverability problems by following these steps in order. Each step builds on the previous one.
Step 1: Verify Your SPF Record
An SPF record is a TXT entry in your domain’s DNS. It should list Hostinger’s mail servers (and any other services you use to send email, like your own CRM or a newsletter platform).
What to do:
-
Log into your Hostinger hPanel and go to Email → Email Deliverability (or DNS Zone Editor).
-
Look for an existing SPF record. It starts with
v=spf1. -
If it’s missing, add this line (replace with Hostinger’s current IPs, check their documentation for the exact values):
v=spf1 include:_spf.hostinger.com ~all -
If you also send email through a third-party service (e.g., SendGrid, Mailchimp), add their SPF include, like
include:servers.mcsv.netfor Mailchimp. -
Save the record and wait up to 48 hours for DNS propagation.
Common mistake: Using +all (allow all) instead of ~all or -all. This opens your domain to spoofing. Use ~all (softfail) for testing, then switch to -all (hardfail) once everything works.
Step 2: Add DKIM Signing
DKIM requires a public key in your DNS and a private key on Hostinger’s mail server. Hostinger generates the keys for you.
What to do:
- In Hostinger hPanel, go to Email → Email Deliverability → DKIM.
- Click Enable DKIM or Generate New Key.
- Copy the provided TXT record (usually
default._domainkey.yourdomain.com) and add it to your DNS zone. - If you use a third-party DNS provider, paste the record there. If Hostinger manages your DNS, it may be added automatically.
- After propagation, test your DKIM using a tool like DKIM Validator or send a test email to Gmail and view the headers: look for
dkim=pass.
Note: The DKIM selector (the part before ._domainkey) is often default but could be different. Check Hostinger’s email setup documentation for the exact name.
Step 3: Set Up a DMARC Policy
DMARC builds on SPF and DKIM. A DMARC record tells Gmail what to do if authentication fails. Without it, Gmail may apply its own default (often quarantine).
What to do:
- Add a TXT record with the name
_dmarc.yourdomain.com. - The value should be something like:
v=DMARC1; p=quarantine; rua=mailto:your@email.com; ruf=mailto:your@email.com; fo=1
, p=quarantine tells Gmail to send failing emails to spam. p=reject is stricter but better for deliverability in the long run.
, rua and ruf are optional reporting addresses so you can see who is sending mail claiming to be your domain.
- Start with
p=noneto monitor without affecting delivery, then tighten once you’re confident legitimate mail passes.
Step 4: Check and Fix Reverse DNS (PTR)
Hostinger typically sets a PTR record for their shared IPs, but it may not match your domain. To check:
- Look up your outgoing IP: send a test email to a Gmail account, then view the full headers. Find the line
Received-SPF: ... client-ip=orX-Originating-IP. - Run a reverse DNS lookup on that IP (e.g.,
nslookup 185.28.20.xxor use an online tool). - If the PTR does not resolve to
mail.yourdomain.comor a similar hostname you control, contact Hostinger support and ask them to set the PTR to match your domain’s HELO/EHLO greeting. This requires a dedicated IP or a static IP assignment.
Step 5: Check Blacklists and Request Delisting
Even with perfect authentication, you can’t send to Gmail if your IP is blacklisted. Use tools like MXToolbox Blacklist Check or Spamhaus to see if your IP is listed.
If you find a blacklist entry:
- Identify the reason. Common causes: previous spam activity, phishing, or malware on the server.
- Contact Hostinger support to ask them to investigate and resolve the root cause. They can also request delisting from the blacklist operator.
- If the IP is shared and the problem is caused by another user, you may need to move to a dedicated IP or a different server.
Step 6: Warm Up the IP Address (If New)
If you just moved to Hostinger or got a new dedicated IP, Gmail doesn’t trust it yet. You need to “warm up” the IP by gradually increasing email volume over 2, 4 weeks.
How to warm up:
- Start by sending only 10, 20 emails per day to engaged recipients who are likely to open and reply.
- Increase by 20, 30% each week.
- Monitor Gmail’s Postmaster Tools for spam rates and reputation.
- Avoid sending to purchased lists or old addresses during the warm-up period.
Step 7: Consider a Dedicated IP
Hostinger offers dedicated IP addresses as an add-on (usually for a small monthly fee). A dedicated IP separates your sending reputation from other users. This is the most effective long-term fix for shared-server deliverability issues.
When to upgrade:
- You send more than 500 emails per month.
- Your shared IP is consistently blacklisted despite fixing authentication.
- You need consistent inbox placement for transactional emails (order confirmations, password resets).
Step 8: Use a Third-Party Email Service (Plan B)
If after all the above steps your emails still don’t reliably reach Gmail, consider moving your email sending to a dedicated transactional email provider like SendGrid, Mailgun, or Amazon SES. These services have better reputations and built-in deliverability tools. You can keep your domain on Hostinger and just route email sending through the third party.
Hostinger’s own Business Email plan (which uses a separate infrastructure from shared hosting) may also perform better, but it still shares IPs with other Business Email users.
Common Mix-ups or Things People Get Wrong
Mix-up: “I set up SPF and DKIM, so my emails should go to the inbox.”
Reality: Authentication is necessary but not sufficient. Gmail still looks at engagement (open rates, replies, spam complaints) and content (spammy words, excessive links). If your email content triggers Gmail’s filters, it will be quarantined even with a perfect DKIM signature.
Mix-up: “My emails are being sent but not received. Gmail must be blocking them.”
Reality: Gmail rarely blocks email outright unless your IP is on a major blacklist or your DMARC policy is set to reject and authentication fails. More often, the email lands in the Spam folder. Check the recipient’s spam folder.
If it’s not there either, the email may have been silently dropped by Gmail’s rate limiting or a temporary greylisting. Use a service like Mail Tester to simulate delivery to Gmail.
Mix-up: “Hostinger’s email deliverability tool does everything automatically.”
Reality: The tool generates the correct SPF and DKIM records, but you still need to add them to your DNS. If you use a third-party DNS provider (like Cloudflare or Namecheap), the tool cannot automatically add the records. Also, the tool does not set up DMARC or reverse DNS for you.
It’s a starting point, not a cure-all.
Mix-up: “I can just use Gmail as my email client and send through Hostinger’s SMTP.”
Reality: Using Gmail as an SMTP client (via POP/IMAP) still sends mail through Hostinger’s servers. The deliverability problem is with the sending server, not the client. Whether you use Outlook, Thunderbird, or Gmail’s web interface, the mail is sent over Hostinger’s pipes.
What This Means for You
If you’re running a small personal site or a low-volume business, fixing authentication is usually enough. Add SPF, DKIM, and DMARC, and test with a few emails to Gmail. Most people see an immediate improvement.
If you’re sending newsletters, transactional emails, or any volume above a few hundred per month, consider a dedicated IP or a third-party sending service. Hostinger’s shared hosting email is decent for occasional correspondence, but not for reliable bulk delivery to Gmail.
Also, keep an eye on your sender reputation using Google’s Postmaster Tools. Even if everything is technically correct, reputation can dip over time if recipients mark your emails as spam. Use a double opt-in for mailing lists and remove inactive subscribers regularly.
If you’re already set on Hostinger and want to get the best email deliverability without leaving their ecosystem, the Business Email plan often performs better than the default shared hosting email. But for mission-critical email, I’d recommend a provider like Google Workspace or Microsoft 365.
For Hostinger’s own services, the best value plan for small to medium sites is the Business Web Hosting plan, which includes a free domain, SSL, and email accounts. If you’re ready to sign up, you can use the coupon below to get a discount.
Frequently Asked Questions
Why are my Hostinger emails going to spam in Gmail?
The most common reason is missing SPF or DKIM records. Gmail cannot verify that the email is genuinely from your domain. Other causes include a shared IP with poor reputation, a missing DMARC policy, or reverse DNS mismatch.
Follow the steps in this guide to check each factor.
Does Hostinger support DMARC?
Yes, Hostinger’s email deliverability tool allows you to add a DMARC record. However, you must manually add the TXT record to your DNS zone. Hostinger does not set DMARC automatically.
You can set it to p=none for monitoring, then tighten to p=quarantine or p=reject once you confirm SPF and DKIM are working.
Can I use a dedicated IP with Hostinger email?
Yes. Hostinger offers dedicated IP addresses as an add-on for shared hosting plans. A dedicated IP separates your sending reputation from other users on the same server.
This is the most effective way to improve deliverability if your shared IP has a bad reputation. Contact Hostinger support to order a dedicated IP.
How long does it take for DNS changes to affect email delivery?
DNS propagation can take up to 48 hours, but many providers (including Gmail) update within a few hours. After adding SPF, DKIM, or DMARC records, send a test email to a Gmail account and check the headers. If you see spf=pass and dkim=pass, the records are active.
You can also use a tool like DNSChecker to see if the records are visible globally.
What should I do if I’ve tried everything and emails still don’t reach Gmail?
If you’ve verified SPF, DKIM, DMARC, reverse DNS, and your IP is not blacklisted, the issue may be content or engagement based. Try sending a plain-text email with no images or links to a test Gmail account. If that lands in the inbox, gradually add elements back.
Also, consider using a service like SendGrid or Mailgun to send your emails through a dedicated delivery infrastructure. Finally, contact Hostinger’s support team to check if there are server-side blocks or rate limits affecting your account.
If you’re ready to improve your hosting setup or switch to a plan that offers better email deliverability, Hostinger’s Business Web Hosting plan includes free email accounts and a free domain. Use the coupon code to get a discount on your first term. For more tips on DNS configuration, check out our guide on setting up A records from Blogger to Hostinger.
If you’re considering moving away from Hostinger’s built-in email, our Hostinger Business Email features and pricing review explains the pros and cons. And for the best deal on a new account, grab the latest Hostinger coupon code before you sign up.
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