How many domains do you need for cold email?
Enter your daily volume and see how many sending domains and inboxes you need, and roughly what they cost each month.
Estimate
- Domains
- 12
- Inboxes
- 34
- About per month
- $216
- $12 domains + $204 inboxes · sends up to 1,020 a day
An estimate from the numbers you entered. New inboxes also need a few weeks of warm-up before they reach full volume.
Check your list before you sendInboxes
Daily emails ÷ sends per inbox, rounded up.
Domains
Inboxes ÷ inboxes per domain, rounded up.
Monthly cost
Domains × yearly price ÷ 12, plus inboxes × monthly price.
Cold email setup questions
How many emails can I send per inbox per day?
For cold outreach, about 30 a day per inbox is a common safe ceiling. Going much higher makes it more likely that mailbox providers start sending your mail to spam.
How many inboxes should I put on one domain?
Two or three inboxes per sending domain is typical. Spreading volume across domains means a problem with one domain doesn't take down all of your outreach.
Should I send cold email from my main company domain?
Most teams use separate sending domains (for example a variation of their brand name) so their main domain's reputation is protected.
Do new inboxes need warm-up?
Yes. New inboxes usually need a few weeks of gradually increasing volume before they reach full sending capacity.
Is this calculator exact?
No. It's an estimate based on the numbers you enter. Change any input to match your own provider prices and sending limits.
How do I keep bounce rates low?
Check your list before you send. Invalid and throwaway addresses bounce, and a high bounce rate hurts every domain you send from. BounceLayer's free list health check shows the problems in your list in seconds.
Protect every domain you send from
Bounces hurt your sending domains. Check your list for free before your next campaign, and get 300 free checks every month.