Email Finder

A Python script to find valid email addresses from first name, last name and domain.

Introduction

Given first name, last name and domain name the program:

1. Creates list of 20 possible formats given name and domain

2. Verifies whether email addresses exist

3. Returns valid addresses

Dependencies

• dns.resolver (DNS toolkit) pip install dnspython

• Pyperclip (clipboard functions) pip install pyperclip

Usage

python3 email-finder [first name] [last name] [domain]

Alternatively, if arguments are missing, the script will request user input.

Errors

The script will detect and handle basic errors:

1. Domain not found on DNS query

2. No answer for DNS query

3. SMTP Server disconnection

The program tends to not work / return false positives for personal emails, probably due to filters / catch-all addresses.

Improvements

This program can be improved with additional features:

1. Stronger email verification

Email verification using existing modules such as validate_email or APIs such as those of Mailgun or MailboxValidator.

2. Generic emails

If no valid email address is returned, generic email addresses (e.g. info@domain) will be checked.

3. Optional middle name

Add possibility to input middle name and support additional email formats.

4. Bulk finder

Find multiple addresses at once from a given file.

5. SMTP response

Add more allowed responses than the standard 250 success code.

6. Search engine check

Run a second verification to check whether the email address(es) found has been indexed by a search engine.