Home › Help center › Email and communications › Keep your email out of the spam folder

Keep your email out of the spam folder

Set up domain authentication once, protect your sending reputation, and know what to do if you land in spam.

2 min read · Published May 7, 2026

Whether your email lands in the inbox or in spam comes down to three things: domain authentication, sending reputation, and what is in the message.

Domain authentication (one-time setup)

Tormano gives you three DNS records to add at your domain host:

  • DKIM: proves the message really came from your domain and was not altered on the way.
  • SPF: lists which servers are allowed to send from your domain.
  • DMARC: your policy for handling messages that fail DKIM or SPF.

Add the records, wait an hour for them to take effect, then click Verify under Settings > Integrations > SendGrid. All three should show as Verified (green).

Without them, Gmail and Outlook treat your email as suspicious.

Sending reputation

Reputation builds over time. A new sending domain starts neutral and earns trust as engaged recipients open and click. Sending to dormant lists, or to a list you bought, damages it quickly.

Content that trips spam filters

  • All-caps subject lines.
  • Excessive exclamation marks.
  • Trigger words such as free, urgent, and act now.
  • Single huge image with no text.
  • No physical mailing address in the footer, which the CAN-SPAM Act requires.
  • Heavy or broken formatting.

What to do if you land in spam

  1. Check that DKIM, SPF, and DMARC all show as verified.
  2. Send a test to mail-tester.com, which scores your email and points out what to fix.
  3. Clean your list: remove anyone who hasn’t opened anything in six months.
  4. Send less often.
  5. If you ever bought a list, that domain’s reputation may not recover. Start sending from a fresh subdomain, mail.yourdomain.com instead of yourdomain.com.

Can’t find your answer?

Send your question to the Tormano team.

Email support