Free tool
Enter a first name, last name and company domain to generate every common email address format at once: first.last, f.last, firstl and 27 more. Copy the list, verify it, and send to the one that exists. Free, instant, no signup, no limits.
Ready to generate
Enter a name and domain to see email combinations
Most companies follow specific patterns for their employee email addresses (like [email protected]). This tool automatically generates the most common permutations so you can find the right one.
Manual Prospecting
Perfect for when you have a prospect's name and company but no email.
Higher Success Rate
One of these combinations is likely the correct inbox.
Verification Ready
Take these emails and run them through a verifier to confirm validity.
Check the domain
Make sure you have the correct company website (e.g., getcompany.com vs company.com).
Verify before sending
Always verify the generated emails to protect your domain reputation.
Look for patterns
If you find one email for a company, others usually follow the same format.
FAQ
An email permutator is a tool that generates multiple potential email address variations based on a person's first name, last name, and company domain. It helps sales professionals guess the correct email format for a prospect.
Yes, the InboxKit Email Permutator is 100% free to use with no limits on the number of searches you can perform.
After generating the list of potential emails, we recommend using the free InboxKit email verifier to check which address is valid before sending.
Sending emails to invalid addresses increases your bounce rate, which harms your sender reputation and can cause your emails to land in spam. Finding the correct format ensures your message reaches the inbox.
Thirty. It covers every combination of first name, last name and their initials with dot, hyphen, underscore and no separator, in both first-last and last-first order. That is enough to cover the format in use at almost any company.
[email protected] is the most common format at mid-size and large companies, and [email protected] is the most common at small ones. Confirm with one known address at the target company: whatever pattern it follows almost always applies to everyone else there.
Companies pick one pattern and apply it to everyone. Find one real address at the target company, from a signature, a press release or a contact page, and the same pattern almost always applies to the person you are looking for.
| Format | Example | Where you see it |
|---|---|---|
| first.last | [email protected] | The default at most mid-size and large companies |
| first | [email protected] | Startups and small companies with few name collisions |
| firstlast | [email protected] | Older companies and some enterprises |
| flast | [email protected] | Enterprises, universities and government |
| f.last | [email protected] | Consultancies and law firms |
| first_last | [email protected] | Less common; some Microsoft-heavy organisations |
| last.first | [email protected] | Some European and Asian companies |
| lastf | [email protected] | Legacy systems with short username limits |
The tool generates 30 permutations covering every separator and ordering. Run the list through the email verifier before you send anything: mailing every permutation at once is the fastest way to earn the bounce rate that the deliverability guide warns about, and a burned domain costs far more than a missed prospect.
InboxKit provides complete email infrastructure with guaranteed deliverability and unlimited scaling.
