Find business email addresses, filter results, and build your own B2B lead database
Saleit Leader 3.0 is a web application for B2B research, finding business email addresses, performing SMTP verification, and saving valuable contacts in one panel. You're not just buying a simple script — you're getting a fully functional tool for independently acquiring business contacts.
In B2B prospecting, sending the message itself is not the hardest part. First, you need to find companies, websites, email addresses, filter out consumer contacts, check if an address appears active, and then organize the results in a database.
Doing this manually with Google, directories, and spreadsheets takes hours. Regular scrapers often save everything indiscriminately — including private, junk, inactive, or completely useless addresses for B2B activities.
Saleit Leader 3.0 solves this problem differently: it searches for contacts based on specified criteria, filters results, can skip consumer addresses, and verifies emails before saving them to the database.
this is not a simple script that collects random addresses. It's a full application with a panel, task queue, results database, logs, export functions, and verification settings.
What can you gain with your own Lead Engine?
Instead of buying a ready-made list once or manually searching for contacts, you can launch your own tool for systematic B2B research.
Greater control over your target
You independently choose keywords, industries, countries, and domains to be checked. You are not limited to one ready-made list.
Less random data
The application can skip consumer addresses like Gmail, Yahoo, Hotmail, and focus on business B2B contacts.
Verification before saving
Thanks to SMTP checking, you can reduce the number of inactive or worthless addresses before they enter your database.
1 What can Saleit Leader 3.0 do?
The application is designed for companies, agencies, marketers, and B2B prospecting professionals who want to independently search for potential business contacts based on keywords, industry, country, or domain.
- searching for business email addresses based on keywords,
- support for local and industry searches,
- targeting domains and countries, e.g., .pl, .de, .fr, .co.uk, .com,
- automatic skipping of consumer addresses like Gmail, Yahoo, Hotmail,
- SMTP email verification before saving,
- saving only results that meet selected criteria.
- admin panel accessible via browser,
- search task queue,
- viewing and filtering collected addresses,
- exporting results to files,
- system logs and application activity monitoring,
- configuration of results count, filters, verification, and data saving.
Not just collecting addresses. First research, then filtration and verification.
The biggest advantage of the application is that it doesn't have to save every found address. The system can immediately reject some consumer contacts, analyze results, and verify email addresses before adding them to the database.
Thanks to this, your list is not a random collection of junk contacts, but a more organized database of business addresses that can be further used in research, CRM, or sales activities.
- B2B contact search,
- domain and country filtering,
- skipping free consumer mailboxes,
- SMTP verification before saving,
- results panel and export,
- task queue running on a VPS server.
2 How does the application work step by step?
Saleit Leader 3.0 acts as your own backend for business contact research. The user doesn't have to manually browse hundreds of pages — instead, they create a task, set criteria, and the application does the work in the background.
You set search criteria
You enter keywords, industry, market, country, or domains you want to include in the search.
The application searches for potential sources
The system analyzes results, company websites, and publicly available sources to find business email addresses.
It filters unwanted addresses
You can skip consumer addresses and limit results to contacts more useful for B2B activities.
It verifies addresses via SMTP
The system can check if an address appears to be handleable by a mail server before saving it to the database.
It saves and organizes results
The collected data goes to the panel, where it can be viewed, filtered, and exported for further work.
3 Who is Saleit Leader 3.0 for?
This tool is for people who don't want to rely solely on ready-made databases, expensive SaaS platforms, or manual research. It works best where new B2B contacts need to be found regularly.
B2B Companies
For companies regularly seeking new contractors, partners, distributors, or potential clients.
Marketing Agencies
For agencies conducting prospecting, research, email campaigns, or preparing contact lists for clients.
Cold Email and Sales
For individuals who want to independently build lists of potential recipients before a sales campaign.
International Research
For those looking for contacts in selected markets, domains, and countries, e.g., .de, .fr, .pl, .co.uk, or .com.
Technical Teams
For companies that want a tool running on their own server or in a managed instance.
Small Businesses and Startups
For individuals who want their own source of B2B contacts without paying for every single validation in external applications.
4 Why is this better than a simple scraper?
A simple scraper usually performs one task: finding character strings that look like email addresses and saving them to a file. The problem is that such a file often contains a lot of random, consumer, inactive, or sales-wise unhelpful data.
Regular Scraper
Often saves everything it finds: free, random, duplicated, inactive, or unhelpful addresses for B2B activities. Then, results must be manually cleaned and checked.
Saleit Leader 3.0
Allows setting criteria, filtering results, skipping consumer addresses, verifying emails via SMTP, and working with results in a web panel.
Available Deployment Options
You can run the application on your own VPS or use a ready-made configuration with hosting and access to the panel.
A Installation on your VPS
We install and configure the application on your own VPS server. This solution is for those who already have a server or want full control over their infrastructure.
- application installation on your server,
- environment configuration,
- web panel launch,
- basic task and settings configuration,
- delivery of access credentials,
- full control on your side.
B Ready-made configuration with hosting
We prepare a working instance of the application and provide you with the login address and access data. You don't have to purchase or configure the server yourself.
- ready-made application instance,
- login address and access credentials,
- first month of maintenance included,
- technical configuration on our side,
- ability to use via browser,
- option for further maintenance in a Managed Hosting model.
5 What's inside the application?
Saleit Leader 3.0 is not a single command or a simple file run in a terminal. It's a web application with elements necessary for operational work: a panel, a queue, a database, export, and logs.
Web panel
You log in via a browser and manage searches without working directly in the console.
Task queue
You can add search tasks that the application performs in the background on the server.
Results database
Collected addresses go into a database where they can be viewed, filtered, and organized.
Data export
Results can be exported to files and further used in CRM, spreadsheets, or sales processes.
Statistics and logs
The panel allows monitoring application activity, checking task progress, and analyzing results.
Verification settings
You can configure how filters, limits, saving, and address verification work.
6 Important information before purchase
This tool is intended for legal B2B research and finding publicly available business contacts. It is not an email sending service, a spam tool, or a guarantee of a specific number of found addresses.
- the application is for B2B research and prospecting,
- it searches for publicly available business contacts,
- it allows filtering and organizing results,
- it can verify addresses via SMTP,
- it can run in the background on a VPS server,
- future updates are possible as part of an active maintenance service.
- the product does not include email sending or campaign management,
- we do not guarantee a specific number of found addresses,
- results depend on keywords, country, domains, and website availability,
- some SMTP servers may hide or block validation responses,
- SMTP verification does not provide a 100% guarantee of every address's validity,
- the user is responsible for using collected data in compliance with the law.
Frequently Asked Questions
Below you will find the most important information worth knowing before implementing the application.
Is this just a regular email scraper?
No. This is a web application with an administration panel, task queue, results database, export, logs, and verification settings. Its goal is organized B2B research, not random collection of every found address.
Does the application verify email addresses?
Yes, the application can perform SMTP verification before saving an address. However, it's important to remember that no verification method offers 100% guarantee, as some mail servers hide or block validation responses.
Does the application send email campaigns?
No. The product does not include email sending, mailing campaigns, or automatic contact with recipients. It's a tool for searching, filtering, and organizing B2B contacts.
Can I target specific countries or domains?
Yes, the application can work with selected domains and countries, e.g., .pl, .de, .fr, .co.uk, .com, and others, depending on the configuration and scope of implementation.
Do I need my own VPS?
Not always. Two options are available: installation on your VPS or a ready-made configuration with hosting, where we prepare a working instance and provide login details.
Is the first month of hosting included?
Yes, with the ready-made configuration with hosting option, the first month of application maintenance is included in the price. Further maintenance can be provided as part of an active Managed Hosting service.
Are there application updates?
Future updates and new application features are available as part of an active maintenance service or Managed Hosting.
Do you want your own backend for B2B contact search?
Saleit Leader 3.0 allows you to independently find business email addresses, filter results, verify contacts, and build a lead database without manually digging through the internet.
If you need a different configuration, a broader scope, or a custom implementation, please contact us before purchasing.
