Setting SPF, DKIM and DMARC up can feel confusing at first, but they’re important to make sure your carefully crafted emails actually reach your leads’ primary inbox. Do these few right, and you dramatically improve deliverability.
What it is: A cryptographic signature added to every email you send. It proves the message really came from your domain and wasn’t altered in transit.
Why it matters to Manyreach users: Strong DKIM is one of the clearest trust signals mailbox providers look for.
What it is: A DNS record that lists which services are allowed to send mail for your domain.
Think of it like: A list for your domain’s senders; Only your ESPs like Google, Microsoft, etc. let in names on the list.
Why it matters to Manyreach users: If your outreach platform or CRM isn’t on the list, your mail can be flagged or filtered.
What it is: A policy that tells receivers what to do when SPF/DKIM checks fail (monitor, quarantine, or reject), and where to send you reports.
Why it matters to Manyreach users: DMARC helps protect your brand and steadily hardens your domain’s reputation over time.
Before you start:
You’ll need access to your domain’s DNS such as GoDaddy, Namecheap, Cloudflare, etc, and then copy values exactly, without any extra spaces or typos. And remember, DNS changes can take up to 24 to 48 hours to propagate.
Generate a DKIM key in your email host’s admin, then publish it in DNS, usually as a CNAME or TXT, and enable signing.
Gmail — DKIM Setup
Zoho — DKIM Setup
Outlook (Microsoft 365) — DKIM Setup
Create one SPF TXT record for your domain that includes every service that sends mail for you.
Publish a DMARC TXT record at _dmarc.yourdomain.com. Start in monitoring mode, then tighten.
Gmail — DMARC Setup
Zoho — DMARC Setup
Outlook (Microsoft 365) — DMARC Setup
Include every sender in SPF (your email host, Manyreach sending IPs/services, CRM, helpdesk, etc.). Keep it to one SPF record.
Start DMARC at p=none with reporting, review aggregate reports, then move to quarantine and eventually reject.
Re-check after changes. Use a DNS checker and send test emails before ramping up volume.
Warm gradually. Even with perfect records, you must increase daily sends step-by-step to build a healthy reputation.
