Mailboxes Count Calculator

Enter your outreach goals and we'll tell you exactly how many mailboxes and domains you need.

Outreach Goals

New Prospects Per Month 5,000

500 50,000

Sequence Steps 3 steps

Total emails sent = prospects × steps

1 step 5 steps

Mailboxes Per Domain 4 mailboxes

We recommend 4 (max 5 depending on platform)

1 5

Emails Per Mailbox Per Day 20 emails

We recommend 20 to stay in the safe zone

10 50

Send on weekends

Weekdays only: ~22 sending days/month

Mailboxes Needed 38

at 20 emails/mailbox/day

Domains Needed 10

at 4 mailboxes/domain

Total Emails/Month 15,000

Emails Needed Per Day 682

Sending Days/Month 22

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