How to keep cold emails out of the spam folder: a checklist

There is rarely one reason cold email lands in spam. It is the sum of many small signals: who you are, how you send, who you send to, and what you say. Get the basics right across all four and your inbox placement looks after itself. Here is the checklist.

1. Prove who you are

Set up SPF, DKIM, and DMARC on your sending domain. Unauthenticated bulk email is increasingly treated as guilty until proven innocent. Use a dedicated domain or subdomain for cold outreach so campaigns never put your primary domain's reputation at risk.

2. Send like a human, not a cannon

• Warm up new mailboxes before sending real volume.
• Keep per-mailbox daily volumes modest and ramp gradually.
• Spread volume across several mailboxes rather than overloading one.
• Send consistently rather than in giant unpredictable bursts.

3. Keep your list clean

• Verify email addresses before a campaign; bounces wreck reputation fast.
• Suppress every bounce and opt-out so you never hit them again.
• Drop role addresses and obvious dead ends.

4. Write like a person

• Plain, short, conversational text beats a heavily designed template.
• Go easy on links and avoid image-only emails.
• Skip spam-trigger words and shouty formatting.
• Always include a clear unsubscribe.

Deliverability is not a trick you turn on. It is a hundred small habits that add up to 'this is a real person worth letting through'.

HuntSales sends from your own mailbox with built-in warmup, automatic suppression of bounces and opt-outs, and per-mailbox limits, so most of this checklist is handled by default. You bring the authentication on your domain; the platform handles the sending discipline.