Check your sending address

The most common reason sales emails end up in spam is domain authentication. Enter your sending address and we’ll check whether SPF, DKIM, and DMARC are all set up correctly. No login or install required.

Why does this matter?

The receiving side (Gmail, Naver, a company mail server) checks whether an email really came from the company it claims to. If there’s no way to check, it goes to spam. These are the three things used to check it.

SPF — a record declaring that mail from this domain only goes out from this server. Without it, the recipient may suspect someone is impersonating you.

DKIM — a signature stamped on the email that proves its content wasn’t changed in transit. Without it, the recipient has no way to know if it was altered.

DMARC — a rule telling the recipient what to do when the two checks above fail. Without it, the recipient decides on its own — and usually sends it to spam.

All three are set up by adding TXT records in the admin panel wherever you bought your domain (Gabia, Cafe24, Cloudflare, etc.). If you send from an @gmail.com address rather than a company domain, Google handles this automatically — there’s nothing else to do.

Need to check hundreds of companies at once?

When Outreach collects companies by keyword, it checks whether each address is live first, and you’re not charged credits for addresses that don’t exist. The ad-disclosure tag and opt-out instructions are also added to every email automatically.