Email-based purchasing: how to buy a qualified and compliant email database

Buying email databases is a practice that is often used to accelerate commercial prospecting, especially in strategies for B2B prospecting aimed at quickly generating new contacts. The idea seems simple: quickly access thousands of contacts to launch email campaigns and generate commercial opportunities.

But in reality, buying an email database raises several major challenges: data quality, regulatory compliance, campaign deliverability and marketing profitability.

Before investing in an email file, it is therefore essential to understand How these databases are created, what the regulations say and how to use this data effectively.

Buying an email database: definition and operation

What is an email marketing database

One Email marketing database is a file containing email addresses associated with information on contacts or businesses.

Depending on the suppliers, these databases may contain:

• professional or personal email address
• Name and surname
• function or position held
• venture
• sector of activity
• localization
• business size

These databases are used for various marketing actions:

• emailing campaigns
• commercial prospecting
• lead generation
• invitations to events or webinars

These campaigns often rely on a prospecting script allowing to standardize the messages sent to prospects.

The end goal is Make a B2B appointment with qualified prospects.

How email databases are collected

Email databases can be set up in several ways:

• newsletter subscriptions
• downloading content (white papers, studies, guides)
• participation in events or webinars
• forms on websites
• partnerships between businesses

Some data providers then enrich these databases with additional information to improve marketing targeting.

Bon à savoir

De nombreuses bases commerciales combinent aujourd’hui collecte déclarative (formulaire) et enrichissement de données B2B pour améliorer la qualification des contacts.

Many companies also prefer to entrust this process to a B2B prospecting agency able to build qualified and usable contact bases in a structured commercial strategy.

Difference between email database, leads and prospect files

These three concepts are often confused, but they correspond to different marketing realities.

The more a contact is involved in a voluntary process (registration, download, contact request), the higher its marketing value.

Is it legal to buy an email database?

The RGPD regulation on the purchase of email databases

Since the May 25, 2018, the General Data Protection Regulation (RGPD) strictly regulates the collection and use of personal data.

In particular, this regulation imposes:

• one transparent data collection
• one clear information for those concerned
• one use in accordance with the announced purpose
• one limited data retention period

In practice, the purchase of an email database is not systematically prohibited, but The company that uses this data remains responsible for its compliance.

The concept of opt-in and consent

The consent (opt-in) corresponds to an individual's explicit agreement to receive marketing communications.

Two main cases exist:

B2C

Prospecting by email requires mandatory prior consent.

B2B

The regulations are more flexible: the email can be sent without prior consent if:

• the communication is linked to the professional activity of the recipient
• the recipient is clearly informed of the origin of the data
• one unsubscribe link is present in every email

The legal risks associated with the purchase of email files

The use of a non-compliant email database can lead to several risks:

• financial sanctions
• spam complaints
• damage to brand image
• blocking email campaigns

In France, the authority responsible for controlling these practices is the CNIL.

Bon à savoir

La RGPD impose également de supprimer ou réactualiser les données devenues inactives après plusieurs années sans interaction.

How to choose a quality email database

Criteria for evaluating the quality of an email database

Not all email databases are created equal. Before buying a file, several criteria must be analyzed:

• Source of data
• collection method
• Freshness of information
• Level of qualification of contacts
• regulatory compliance

A poorly qualified base can result in a low response rate and deliverability issues.

Email validity rate

A good supplier should guarantee a high validity rate of email addresses.

Professional email databases generally offer:

• address verification
• detecting invalid emails
• deleting obsolete contacts

A low validity rate increases:

• The bounces
• Spam reports
• the deterioration of sender reputation.

Contact segmentation and targeting

The quality of an email database also depends on its capacity for segmentation.

A well-segmented database makes it possible to send more relevant messages and improve campaign performance.

Geo-targeting

It is possible to filter contacts according to:

• country
• region
• town
• economic zone

This targeting is useful for local campaigns or commercial actions on the ground.

Sectoral targeting

B2B email databases can be segmented by:

• sector of activity
• type of business
• organization size
• technologies used

This level of precision makes it possible to address messages that are really relevant to the target.

B2B vs B2C targeting

The strategies differ greatly depending on the target.

Base type

Main use

B2B

Commercial prospecting

B2C

Direct marketing and e-commerce

B2B bases are generally easier to operate within a regulatory framework.

Where to buy a reliable email database

Platforms specialized in the sale of email databases

Some platforms offer marketing databases that are directly accessible via subscriptions or exports.

They generally allow:

• To filter contacts
• to export files
• to enrich the data

Marketing data brokers

Les Data brokers or data brokers market email databases from multiple sources.

They can offer:

• very bulky bases
• specific targeting
• enriched data

However, transparency on data collection can sometimes be limited.

Sectoral or professional email databases

Some databases are specialized by sector:

• industry
• realty
• Finances
• tech
• health

These files are often more qualified because they target specific professional communities.

Price of an email base: how much does it cost

Average price per email contact

The price of an email database depends mainly on the level of qualification.

On average:

Factors that influence the price

Several factors influence the cost of a base:

• data qualification level
• targeted business sector
• targeting accuracy
• Volume purchased
• Freshness of the data

Very specialized bases can be Significantly more expensive.

Examples of rates according to volume

The unit price generally decreases as volume increases.

Advantages and disadvantages of buying email databases

The advantages for rapid prospecting

Buying an email database can allow:

• to quickly access a large number of contacts
• to launch campaigns immediately
• to test new markets
• to feed a commercial pipeline

For some businesses, this may be a quick prospecting tool.

The limits in deliverability and commitment

However, purchased databases have several limitations:

• often low opening rates
• limited commitment
• sometimes intrusive perception

Since the recipients did not necessarily ask to receive your emails, interest in your message may be low.

The risks of spam and blacklists

Sending massive emails to low-qualified contacts can lead to:

• spam reports
• blocking by email providers
• registration on blacklists

These issues can impact all your emailing campaigns, including those sent to your own customers.

Email-based buying vs lead generation

Differences in marketing performance

The purchase of email databases favors the Number of contacts, while lead generation aims quality and intention.

Leads generally come from:

• of downloaded content
• of a voluntary registration
• of a request for information

So they are more committed from the start.

Quality of the prospects obtained

A lead who has left their contact details following a marketing action is generally:

• more qualified
• more receptive
• closer to the act of purchase

Conversely, a contact from a purchased base often requires several interactions before generating a business opportunity. To transform these contacts into commercial opportunities, it is often necessary to structure exchanges with a discovery plan allowing the needs of the prospect to be precisely qualified.

ROI of both approaches

In the short term, buying email databases may seem less expensive.

But over the long term, lead generation often offers:

• a better conversion rate
• a more qualitative relationship
• a better return on investment.

More effective alternatives to buying email databases

Lead magnets and email capture

Les Lead magnets consist in offering high added value content in exchange for an email address:

• white paper
• study
• practical guide
• downloadable template

This method makes it possible to constitute a qualified and voluntary base.

Advertising to generate qualified leads

Advertising campaigns also make it possible to generate contacts:

• search engine advertising
• social media campaigns
• B2B sponsored campaigns

They offer precise targeting and more qualified leads.

Partnerships and co-registration

Some companies develop their email base via:

• partnerships with other brands
• co-marketing operations
• co-registration (joint registration)

These approaches allow to broaden its base while remaining in compliance with consent rules.

Best practices for exploiting a purchased email database

Email verification and cleaning

Before any campaign, it is recommended to:

• check the validity of addresses
• remove duplicates
• eliminate invalid emails

This cleaning improves the deliverability of campaigns.

Segmentation before sending

An email database should always be segmented before sending:

• sector of activity
• function
• business size
• localization

Effective segmentation makes it possible to send more relevant and better targeted messages.

Optimization of emailing campaigns

To maximize results:

• personalize messages
• test multiple email objects
• limit the initial sending volume
• analyze performance

The aim is to improve progressively the opening and response rate. Once the contact is involved in the discussion, it then becomes possible to apply different Techniques to close sales and turn the initial interest into a business opportunity.

Preserve its deliverability and its reputation as a sender

Finally, sender reputation must be protected.

It is recommended to:

• avoid immediate mass shipments
• monitor bounce rates
• respect the requests to unsubscribe
• maintain a regularly updated database.

Good database hygiene is essential for guarantee the performance of email campaigns over the long term.