Emails landing in recipients' spam folders is usually caused by one or more of these issues:
- Missing or incorrect SPF / DKIM / DMARC records (see the previous article).
- Your sending domain is new. Brand-new domains have no sending reputation, so providers like Gmail and Outlook are cautious. Reputation builds up over 4–8 weeks of legitimate sending.
- Your IP address is on a blacklist. Check at mxtoolbox.com. If yours is listed, contact our support and we'll request delisting.
- Spammy content. Subject lines in ALL CAPS, excessive exclamation marks, "free money" language, and image-only emails (no text) all trigger spam filters.
- No unsubscribe link in marketing emails. Required by law in most jurisdictions and expected by mailbox providers.
If problems persist, our deliverability team can audit your setup — open a ticket and include a sample email from a recipient that ended up in spam (with full headers).
