What this is
Guidelines for sending cold emails in a way that protects deliverability.
Why it matters
Cold email is one of the highest-risk sending types. Poor execution can quickly damage your domain reputation.
Best practices
Start with low sending volume and increase gradually
Use separate subdomains for cold outreach
Keep email copy simple and natural
Avoid spam-triggering language and formatting
Target relevant, high-quality prospects
What to avoid
Sending large volumes from a new domain
Using unverified or purchased lists
Aggressive follow-up sequences