Why Are My Emails Going to Spam? 8 Fixes That Work

Sending an email only to have it silently land in the recipient's spam folder is one of the most damaging deliverability problems. The recipient never sees it, you never get a reply, and you have no idea anything went wrong. Here's why it happens and exactly how to fix it.

1. You Have No SPF Record (or It's Wrong)

SPF (Sender Policy Framework) tells receiving servers which IP addresses are allowed to send email for your domain. Without it, servers treat your emails as potentially forged.

How to check: Go to mxtoolbox.com/spf.aspx and enter your domain. If you see "SPF record not found" or errors, you need to act.

Fix: Add a TXT record to your domain's DNS. Example for Google Workspace:

v=spf1 include:_spf.google.com ~all

For cPanel hosting, use your host's specific SPF value — it's usually shown in the Email Deliverability section of cPanel.

2. DKIM Signing Is Disabled

DKIM (DomainKeys Identified Mail) adds a cryptographic signature to every outgoing email, proving the message wasn't altered in transit. Gmail, Outlook, and Yahoo penalise unsigned mail heavily.

Fix: Enable DKIM in your email provider's settings:

• Google Workspace: Admin Console → Apps → Gmail → Authenticate email → Generate new record
• cPanel: Email → Email Deliverability → Repair DKIM
• Microsoft 365: Security portal → Email & collaboration → Policies → DKIM

3. No DMARC Policy

DMARC ties SPF and DKIM together and tells receiving servers what to do when a message fails both checks. Major providers (Gmail, Yahoo) now require a DMARC record for bulk senders.

Fix: Add this TXT record to your DNS (start with p=none to monitor before enforcing):

_dmarc.yourdomain.com TXT "v=DMARC1; p=none; rua=mailto:[email protected]"

Once you've confirmed SPF and DKIM are working, move to p=quarantine then p=reject.

4. Your Sending IP Is on a Blacklist

Shared hosting often means sharing an IP with other senders. If one of them spammed, your IP may be blacklisted too — and your mail goes straight to spam.

How to check: Visit mxtoolbox.com/blacklists.aspx and enter your outgoing mail server IP.

Fix:

• Submit a delisting request on each blacklist's website
• Ask your host for a dedicated IP address for email
• Switch to a reputable transactional email service (SendGrid, Brevo, Amazon SES)

5. Spam-Triggering Words in Subject or Body

Spam filters score every word in your email. Some patterns almost guarantee the spam folder:

• ALL CAPS subject lines
• Phrases like "Free money", "Guaranteed", "Act now", "Click here"
• Excessive exclamation marks!!!
• Misleading subjects (e.g. "Re:" when it's not a reply)
• More than 3–5 links in a short email
• URL shorteners (bit.ly, tinyurl)

Fix: Write naturally. Before sending a campaign, test your email at mail-tester.com — it scores your email from 1–10 and lists exactly what's triggering filters.

6. Your Domain Has Poor Sending Reputation

New domains have no sending history — spam filters are suspicious of them by default. Also, if you've sent a high volume of email with low open rates or many spam complaints, your reputation drops.

Fix:

• Warm up a new domain gradually: start with 50 emails/day, double each week
• Clean your mailing list regularly — remove bounced and unengaged addresses
• Make it easy to unsubscribe (required by law in many countries anyway)
• Monitor your reputation at Google Postmaster Tools

7. HTML-Only Emails With No Plain Text Version

Legitimate email clients send both an HTML version and a plain-text fallback. Spam filters treat HTML-only emails as suspicious.

Fix: Always include a plain-text alternative alongside your HTML. Most email marketing platforms (Mailchimp, Brevo) do this automatically — make sure the feature is enabled.

8. Missing or Misleading From Name / Address

Sending from a generic address like [email protected] while claiming to be from "Your Company" looks like spoofing to spam filters.

Fix: Send from an address on your own domain (e.g. [email protected]). Make sure the From name matches your brand. Avoid "noreply" addresses — they also hurt engagement since recipients can't reply.

Quick Deliverability Checklist