🔥 One-Click Import 10K Emails + Auto-Verify

⬅️ Previously · Deep Dive 3️⃣ · Save Contacts — How to Save Precise Customers covered storing AI-searched customers → This guide covers one-click importing your existing local lists (Excel / trade shows / LinkedIn scrapes / old CRM exports) + bulk verification + view filtering.

💡 What you'll achieve: use one-click bulk import to load local Excel/CSV/TXT email lists (up to 10K+) into the CRM + use bulk verification to weed out invalid mailboxes (≤ 10 per batch is free) + use tags + views to instantly filter subsets. Avoid mass-send bounces destroying your mailbox reputation. About 10 minutes total.

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🎯 Why is this step essential?

Experienced foreign trade pros typically have these lists:

• 📇 Trade-show cards: 1000+ business cards from Canton Fair / industry expos
• 🔗 LinkedIn scrapes: contacts pulled by plugins from target companies
• 📊 Purchased industry directories: Excel / CSV bought elsewhere
• 🗃 Old CRM exports: migrated from other tools

Mass send straight away? Bounce rates of 30%+ are typical, and your mailbox reputation gets burned immediately — in the worst case, your provider bans the account.

The right move: first import → bulk verify → tag → then send:

Send without verification	Verify before sending
❌ Bounce rate 30%+	✅ Bounce rate < 5%
❌ Mailbox reputation burned	✅ Reputation preserved
❌ Risk of blacklist / ban	✅ Invalid skipped — no credits wasted

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🤔 Which type are you?

💡 The two paths don't conflict: many people mix both — local lists (7️⃣) + AI-searched customers (4️⃣ → 6️⃣) go into the same CRM, then segment by tag for marketing.

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🚀 Step 1 · Prepare Excel / CSV / TXT

📂 Supported Formats

Format	Use case
📊 Excel (.xls / .xlsx)	Most common customer spreadsheets
📄 CSV (.csv)	Universal, small file size, cross-tool compatible
📝 TXT (.txt)	Plain email list (one per line)

⭐ Required field: Email address

The file needs at least one column that clearly contains email addresses. Other fields (name / company / phone / job title / country) come along if you have them. They're optional — but the email column is mandatory.

📥 Download Sample Template

Not sure how to organize your data? Just follow the template:

👉 Download sample_csv_contacts.csv template

💡 Tip: Before importing, normalize name/company capitalization in Excel and remove obviously invalid rows (empty emails, fake emails). This significantly improves data quality after import.

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🚀 Step 2 · One-Click Bulk Import

Open the Import Flow

Open 👉 Contacts → click Import Data in the top right:

Field Mapping (the most critical step)

After uploading, the system shows a data preview + field mapping screen — you must map each column in your file to the corresponding system field:

Field	Required	How to map
📧 Email	⭐ Required	Pick the column in Excel that contains email addresses
👤 First / Last Name	Optional	Used for personalization variables {first_name} {last_name}
🏢 Company	Optional	Used for variable {company}
💼 Job Title	Optional	Used for variable {title}
🌍 Country	Optional	Makes country-based filtering easier
🏷️ Tag	⭐ Strongly recommended	Use the golden formula: Canton Fair-Medical Devices-Distributor (don't add dates, see Step 4)

⚠️ Always add tags: without them, 10K emails get mixed into the contacts pile and you'll never find which batch is which again. Tags are the foundation for later segmentation marketing and results analysis.

Start the Import

After confirming, click Start Import → background async task runs (seconds to minutes) → top My Tasks badge +1. Go to 👉 My Tasks to watch progress.

📚 Full playbook (deduplication strategy / field mapping / advanced options): Complete Contact Import Guide

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🛡️ Step 3 · Bulk Verify Email Validity

Why Verification is Essential

Mass send without verifying	Verify first, then send
❌ Bounce rate 30%+	✅ Bounce rate < 5%
❌ Burns mailbox reputation	✅ Reputation preserved
❌ Easy provider blacklisting / ban	✅ Invalid skipped automatically, no credits charged

How to Run Verification

1. In 👉 Contacts use the tag you just created to filter the newly imported batch
2. Top blue bar click Select All or check the subset you want to verify
3. Click Verify above the list

💰 Free Verification Quota

🎁 Laifaxin gives free verification: ≤ 10 emails per submission is completely free.

Small batches + multiple submissions = verify large volumes for free. More than enough for newcomers.

4 Verification Result Types

When done, the Verification Result column refreshes in real time:

Status	Meaning	What to do
✅ Valid	Real, deliverable mailbox	Mass send directly
❓ Unknown	Provider blocked the check (e.g. some Gmail / Outlook policies)	Try a small careful send
❌ Invalid	Mailbox doesn't exist / rejects	Skip — don't send (avoid bounces)
🔄 Verifying	Task still running	Wait a few minutes and refresh

📚 Full rules (verification mechanism / accuracy notes / provider differences): Email Verification Explained

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🏷️ Step 4 · Views + Tags · Instant Subset Filtering

After importing 10K contacts, how do you quickly find the subset of "US + Medical Devices + Valid Email" in the future? Answer: Views + Tags.

🏷️ Tag · Golden Formula

Tag naming reuses the 6️⃣ golden formula:

Language - Country - Product/Industry - Supply chain role

Example: English-USA-Medical Devices-Distributor

⚠️ Don't put dates in tags (e.g. 2026Q2) — date management belongs in smart follow-up plans.

📚 Complete playbook (intent tags / risk tags / three-group coordination) see Deep Dive 3️⃣ · Save Contacts — How to Save Precise Customers

👁️ View · Save Your Common Filters

What's a view? = A snapshot of "filter conditions + column layout".

For example, create a view called US Medical-Valid Email-To Develop:

• Filters: tag = English-USA-Medical Devices-Distributor AND verification result = ✅ Valid AND status = To Develop
• Column layout: Name / Email / Company / Open count / Tag
• One-click return to this slice — next time on the contacts page, click the view name → the subset shows in 1 second

💡 First time on the contacts page newcomers see 17 default columns and feel overwhelmed. Click ⚙️ Settings in the top right to hide rarely-used columns and customize a permanent view.

📚 Complete playbook (AND/OR logic combinations / cross-field filtering / view sharing): 🏷️ Tags & Views

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⚠️ Common Mistakes (with fixes)

Symptom	Cause	Fix
🚫 Can't find newly imported contacts	No tag added	Re-import with tag; or sort by creation time desc in 👉 Contacts
🚫 Field misalignment (company name went to name column)	Wrong field mapping	Re-import + carefully match the preview, especially the email column
🚫 Lots of "Unknown" verification results	Recipient is on Gmail / Outlook, verification-unfriendly	Normal phenomenon. Small batch test sends to observe bounces — Unknown ≠ definitely invalid
🚫 Lots of bounces after mass send	Didn't verify before mass send	Always do Step 3 verification first
🚫 Want to verify 10K — is 10 free enough?	Free = ≤ 10 per batch	Submit in multiple batches (10 each); free really is unlimited

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✅ What You've Accomplished

• ✅ Local list now in CRM (up to 10K+, owned permanently, tag-traceable batches)
• ✅ Email validity verified (invalid auto-removed, bounce rate < 5%)
• ✅ Tags + views set up (one-click subset filtering in future, segmentation marketing foundation)
• ✅ Understood 4 verification result meanings + fixes for 5 common mistakes

🎉 Local list is now a "marketable customer base" — next, mass send directly.

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🚀 What's Next

📌 Deep Dive 4️⃣ · Smart Follow-Up · How Auto Marketing Works → Take this batch of verified valid emails and mass send directly — 0 configuration, 10K+ per day, no ban risk.

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📚 Further Reading

• 📚 Complete Contact Import Guide — advanced options / dedupe / field mapping
• 📚 Email Verification Explained — verification mechanism / 4 result types / accuracy notes
• 📚 🏷️ Tags & Views — AND/OR combinations / view examples
• 📚 Contact Management — views / fields / filters / bulk operations
• 💡 Deep Dive 3️⃣ · Save Contacts — How to Save Precise Customers — previous (high-scoring AI customers into CRM)
• 💡 Deep Dive 4️⃣ · Smart Follow-Up · How Auto Marketing Works — next (mass send with verified mailboxes)

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💡 Try it now: 👉 Contacts → top right Import Data → pick Excel → map fields + add tag → launch ⏱️ Reading + hands-on about 10 minutes · Difficulty: Beginner 🆘 Didn't work? See ❓ FAQ