Why Your Cold Emails Land In Spam And What To Check First

When replies dry up, check whether messages are reaching the intended mailboxes. A successful send on your side does not tell you which folder received the message.

For a scoped review of domains, DNS, warmup and sender health, the Deliverability Audit is built for that.

Check The Sending Domain Setup

Start with the domains you send from. Confirm that the DNS records your email provider asks for, such as SPF, DKIM and DMARC, are in place and pass. Mailbox providers use these to judge whether a message really comes from you. Inspect the authentication results on a received test message as well as the DNS configuration.

Look At Warmup

A new mailbox that sends a large batch on day one looks unusual. Check how quickly you ramped volume and whether your sending pattern is steady. Review sending volume and provider limits. Reduce volume when bounces or deferrals rise; gradual sending is not a reason to ignore recipient complaints.

Watch Sender Health

Look at bounce rates, spam complaints and replies. A rise in bounces suggests list quality problems. Complaints suggest the message or audience is wrong. Review them per domain and mailbox, not only in total, so one weak mailbox does not hide in an average.

Test Where Messages Land

Send test messages to your own addresses at different providers and see whether they arrive in the inbox, spam or promotions. Treat the result as a check of those test messages, not a prediction for every recipient. Promotions is an inbox category, not the same thing as spam.

Fix In Order

Do not change everything at once. Review authentication, volume, list quality and copy. Address confirmed failures and recipient complaints first, then compare new send data after each change.

If You Want The Fix List Prepared

The product page for the Deliverability Audit describes an audit of your domains, DNS, warmup and sender health that returns a prioritized fix list, not a generic checklist. It is listed as a scoped audit.

Open the product page to review the scoped audit before buying. Prepare your sending-domain list and recent bounce, complaint and authentication data, then confirm how to provide it securely.