Best Cold Emailing Practices to Boost Open Rates and Replies
By Expevo Growth Team • • 6 min read
Master the best cold emailing practices to boost open rates and positive reply rates using clean domain warmup, plain-text formatting, and value-first CTAs.
1. Protect Your Primary Domain with Dedicated Sending Domains
Never send high-volume cold outreach from your primary corporate domain. Provision secondary domains, configure strict SPF, DKIM, and DMARC records, and ramp up sending volume gradually over 14–21 days.
2. Keep Subject Lines Short, Natural, and Curiosity-Driven
Subject lines between 2 to 4 words written in sentence case consistently outperform promotional headlines. Focus on relevant business problems rather than sales pitches.