Guides
Get more out of your lists.
Short, practical walkthroughs for the everyday email-data jobs our tools were built for.
Sep 27, 2026 · List hygiene
Clean an Email List Before Importing to Your CRM
Fix formatting, dedupe and validate before Mailchimp or HubSpot rejects the import — a five-gate checklist that runs fully in your browser.
Sep 27, 2026 · Methodology
Cold Email Compliance: GDPR, CAN-SPAM and Consent
What GDPR, CAN-SPAM and CASL require before you contact a list — consent bases, opt-out handling and practical hygiene steps.
Sep 27, 2026 · Extraction
How to Extract Emails from Gmail Exports and Threads
Pull addresses from Gmail exports, Takeout MBOX files and forwarded threads locally — no forwarding mail to a third-party service.
Sep 27, 2026 · Extraction
How to Extract Emails from Google Sheets Without Add-ons
Export or copy any Google Sheet, then pull every address cell by cell locally — no add-on permissions, no sheet sharing, no upload.
Sep 27, 2026 · Extraction
How to Extract Emails from Outlook Messages and Files
Get addresses out of Outlook message windows, saved MSG files and copied threads — save or copy first, then extract privately in-browser.
Sep 27, 2026 · Extraction
How to Extract Emails from Resumes and CV Batches
Turn PDF and Word resume piles into a clean candidate contact list — parsed locally, deduplicated, and ready for human review.
Sep 27, 2026 · Formatting
Format an Email List for Gmail vs. Outlook Recipients
Gmail wants commas, Outlook wants semicolons — render the same clean list for either client, plus CSV and JSON, without retyping.
Sep 27, 2026 · Validation
How to Verify an Email List Without Sending Anything
Static syntax checks, disposable and role flags plus optional MX lookup — confirm list quality without test emails or SMTP pings.
Sep 16, 2026 · Methodology
Best Email Extractor Tools Compared Honestly
Eight email tools compared on privacy, cost and capability — including where competitors beat us. Verified September 2026.
Sep 16, 2026 · Methodology
Email Extractor vs Email Finder — Key Differences
Extractors pull addresses out of content you own; finders discover unknown professional emails; verifiers check deliverability. Learn which you need.
Sep 16, 2026 · Methodology
Extraction Accuracy and Scale Benchmarks
How we measure extraction correctness and throughput — datasets, budgets, reference numbers and how to reproduce every figure.
Sep 16, 2026 · Validation
MX Records Explained for List Owners
What MX records are, how to read them, and how an MX lookup turns a dead domain into a quarantine decision before you send.
Sep 16, 2026 · Validation
SPF, DKIM and DMARC Setup Guide
Publish the three DNS records that decide inbox vs spam — what each does, how to check it, and the safe rollout order.
Sep 5, 2026 · Analysis
How to Analyze an Email List by Domain and Provider
Break any list into provider share, top domains, TLD spread and quality signals — then turn the breakdown into segments that behave predictably.
Sep 5, 2026 · Formatting
How to Convert an Email List Between TXT, CSV and JSON
Reshape an email list between plain text, CSV, TSV and JSON in seconds — separators, batching, domain columns and sorting, all processed locally in your browser.
Sep 5, 2026 · Analysis
How to Count Unique Emails in a List (and Read the Numbers)
Get total matches, unique count, duplicates removed, distinct domains and TLDs — plus quality signals like role accounts and disposable providers.
Sep 5, 2026 · Validation
Disposable and Temporary Email Detection Without Signups
Spot Mailinator, YOPmail and other throwaway domains in any list instantly — what static detection catches, what it can't, and the policy to pair with it.
Sep 5, 2026 · Extraction
How to Extract Email Addresses from Excel and CSV Files
Pull every email address out of XLSX, XLS, ODS and CSV spreadsheets in your browser — cell by cell, across every sheet.
Sep 5, 2026 · Extraction
How to Extract Email Addresses from PDF and Word Documents
Get every email address out of PDF, DOCX, TXT and MD documents without uploading anything — page-by-page parsing, obfuscation decoding and one-click export.
Sep 5, 2026 · Extraction
How to Extract Emails from a Web Page (Copy-Paste Method)
No crawler, no extension, no upload: copy any page's text, paste it into the extractor, and get a clean deduplicated address list in seconds.
Sep 5, 2026 · Analysis
How to Find All Company Emails by Domain in a Messy List
Turn a mixed address dump into per-company segments: ranked domain table, subdomain folding, domain grouping and clean per-segment export.
Sep 5, 2026 · List hygiene
Gmail Dots, Plus-Tags and Aliases Explained for List Owners
Why [email protected] equals [email protected], how plus-tags multiply one inbox, and when merging these variants is safe — with a one-click walkthrough.
Sep 5, 2026 · List hygiene
How to Reduce Email Bounce Rate by Cleaning Your List
High bounces hurt sender reputation. Run a four-pass cleanup — clean, validate, dedupe, recount — and fix the address problems you can actually control.
Sep 5, 2026 · Validation
Role-Based Email Addresses: Keep, Segment or Suppress?
What info@, support@ and sales@ addresses mean for deliverability, how to flag them in bulk, and a decision framework for outreach lists.
Sep 5, 2026 · Formatting
How to Sort an Email List Alphabetically or by Domain
Order any email list A–Z, grouped by domain, shortest-first or by frequency — with ascending/descending control and stable, export-ready results.
Aug 24, 2026 · Validation
Email List Hygiene — Static Validation vs SMTP Verification
What browser-side email validation can and cannot tell you, how to read verdicts like risky vs invalid, and when you still need a server-side verifier.
Aug 22, 2026 · List hygiene
Remove Duplicate Emails (Including Gmail Aliases)
Why merged exports breed duplicate emails, how case-insensitive dedupe works, and when Gmail dot-trick merging is safe — plus what never to merge automatically.
Aug 20, 2026 · Extraction
How to Extract Email Addresses from Any Text
A repeatable workflow for extracting emails from pasted text, CSVs, Excel, Word and PDFs — without uploading anything.