How a tech recruiter runs cold candidate outreach without burning their domain
Recruiting outreach has higher reply rates than sales - and different deliverability dynamics. The nuances.
Rejwan Nirob·Oct 20, 2025·5 min readRecruiting cold outreach lives in a different deliverability profile than sales. Candidates engage at higher rates, but they also unsubscribe faster and complain at higher rates if the targeting is off. A tech recruiter we worked with shared their setup.
The numbers
Reply rate of 15 to 25% on warm-targeted senior engineering roles. Unsubscribe rate of 2 to 4%. Spam-complaint rate near 0.1% - well below the danger zone.
The stack
- 6 mailboxes across 3 domains - all named after real recruiters on the team
- Workspace mailboxes (recruiters reply directly from these inboxes)
- Sequencer running short, low-pressure 3-touch sequences
- Strict suppression list - every unsubscribe persists across all sequences
The deliverability risk
Recruiting outreach occasionally lands in spam not because of infrastructure, but because LinkedIn-derived contact data goes stale fast. Hard-bounce rates above 4% appeared monthly until the team added quarterly list re-validation. Hard bounces dropped to under 1%.
Your infrastructure stack matters less than your list quality once basic DNS is correct. Validate before every campaign. Re-validate quarterly.
Frequently asked
What reply rate should I expect from recruiting cold outreach?
15 to 25% on warm-targeted senior engineering roles - significantly higher than sales cold outreach (2.4-3.1% median). Candidates engage more readily than buyers, but unsubscribe rate is also higher (2-4%) and complaint risk goes up if targeting is off. Spam-complaint rate above 0.3% triggers Gmail filtering even on otherwise-healthy infrastructure.
How is recruiting cold outreach different from sales cold outreach for deliverability?
Higher reply rate, higher unsubscribe rate, higher complaint risk. Recruiting tolerates a smaller mailbox cohort (6 mailboxes across 3 domains is typical) because per-mailbox engagement is higher. The deliverability risks shift from infrastructure (DNS, warmup) to list freshness - LinkedIn-derived contact data goes stale faster than B2B lead-gen lists, so quarterly re-validation is essential.
Should recruiters send cold outreach from a dedicated domain or their company email?
Dedicated outreach domain only if you are at agency-recruiter scale (50+ outreach mailboxes). For in-house recruiters at a single company, sending from the actual company email gives a meaningful trust boost - candidates recognize the brand. The trade-off is that recruiting deliverability damage spills over to the rest of the company's mail.
What is a safe spam-complaint rate for recruiting cold outreach?
Below 0.1% is healthy. Above 0.3%, Gmail starts penalizing your domain reputation - the cliff. Recruiting outreach naturally runs slightly higher complaint rates than sales because candidates marking "not interested" sometimes flag instead of unsubscribing. The countermeasure is making the unsubscribe option visually prominent, not just compliant.