Turning an email list into a fax list isn’t as simple as swapping contact details — it requires a strategic approach because email addresses and fax numbers are completely fax lists different data points. However, if you want to leverage your existing email contacts to build or find corresponding fax numbers, here’s how you can do it step-by-step:
Step 1: Analyze Your Email List
Check if your email list includes company names, contact names, phone numbers, or addresses alongside emails.
The richer the data, the easier it is to track down fax numbers.
Step 2: Match Contacts to Public Records or Directories
Use business directories like Yellow Pages, Industry Associations, or Chamber of Commerce databases.
Lookup companies by name and location to find their fax numbers.
For healthcare or legal sectors, specialized directories often list fax info.
Step 3: Use Data Append Services
Employ data append or enrichment services that take your email list and add missing details like fax numbers.
Vendors like Experian, ZoomInfo, Dun & Bradstreet, or UpLead offer these services.
Ensure you use providers that source data legally and provide compliance guarantees.
Step 4: Web Scraping & Automation (With Caution)
Tools can scrape fax numbers from websites linked to your email contacts (e.g., company contact pages).
Be cautious: scraping must comply with data privacy laws and website terms of use.
Use verified and ethical scraping tools with data cleaning features.
Step 5: Manual Research for High-Value Contacts
For key prospects, manual verification via LinkedIn, company websites, or phone calls can yield fax numbers.
This is time-consuming but ensures accuracy for top leads.
Step 6: Verify and Clean Your Fax Numbers
Fax numbers appended or found must be validated to avoid sending to wrong or inactive lines.
Use phone verification tools or fax testing services.
Step 7: Segment and Organize
Add your new fax numbers back into your CRM or marketing database.
Segment based on industry, geography, or buyer persona to tailor your fax campaigns.
Important Notes:
Consent & Compliance: Adding fax numbers means you must ensure you have consent or an Established Business Relationship (EBR) to fax these contacts to stay compliant with TCPA and similar laws.
Quality Over Quantity: Avoid blindly appending large fax lists without vetting. Quality and relevance matter most.
Summary:
Step Action
1. Analyze Check data richness in your email list
2. Match Use public/business directories
3. Data Append Services Enrich data with vendors
4. Web Scraping (Optional) Ethically scrape websites for fax numbers
5. Manual Research Verify key contacts individually
6. Verify & Clean Validate fax numbers before marketing
7. Segment & Use Organize for targeted fax campaigns