To get a LinkedIn profile from an email, you go through the person. One lookup reads who owns the address and returns their name, job title, company and LinkedIn profile link together, so you can check the match before you use it. It takes a work or a personal address. The planner above opens on that route, with what it needs and its price.
Work or personal email
A work address names the employer, and that is how a wrong match gets caught. Look up jon.ellis@granitecreative.example, get back a Jon Ellis at another company, and the lookup drops that answer and charges nothing for it. The one exception is an answer that holds the very address you looked up: it stands.
A personal webmail address names no employer, so nothing checks the answer for you. Read the company and city on the result and ask whether they fit what you know.
Role addresses like sales@ and info@ are mailbox names for functions, not people, and a function has no profile.
How to read the route
From an email, it is one step. A name with a company domain, or a name with a job title, also has a one-step route to a profile link. A name with only a company name takes two steps: find the work email first, then look the person up from it. No route starts from a phone number today.
What to do next
For a list, import the addresses into a Oneprofile table, add the email lookup and run a handful first. Read each result against its address before you spend more. Where a name and domain came back without a link, run the name lookup on just those people.
The find LinkedIn profile by email guide walks through each step. The other direction has its own page: how to get someone's email from a LinkedIn profile.