maya@example.com, maya.patel@example.com, mayapatel@example.com, mpatel@example.com, m.patel@example.com, mayap@example.com, patel@example.com, patel.maya@example.com
Most companies use one pattern for everyone, so once you know one real address at a domain, you can often predict the rest. First.last and first initial plus last name are the most common in B2B. The guesses are then checked with an email verifier, which asks the domain's mail server whether each address exists.
Where permutation breaks down
- Catch-all domains accept every address, so the verifier cannot tell which guess is real.
- Common names collide: two people named Maya Patel, and one gets maya.patel2@.
- Nicknames, hyphenated and accented names produce patterns a simple list misses.
- Guessing many addresses at one domain can look like a directory harvest attack to the receiving server.
Safer ways to get a work email
Use a data provider that has matched the address to the person, verify it, and send only to Valid results at first. Keep guessed addresses at catch-all domains out of your main campaigns, because a high bounce rate damages your sender reputation faster than a few extra leads help. Check the rules where you sell, too; B2B cold email still has to follow privacy and anti-spam law.
In the ZicReach AI Leads Engine, the enrichment waterfall tries the providers you choose, in your order, until one returns a work email, so you pay for one result, not four. Each address is then marked Valid, Catch-all, Risky or Invalid, and a verified work email costs 1 credit. Read how to find verified business email addresses for the full method.