If you’re running email campaigns, you know that sending to unverified lists is a fast way to get flagged as spam or just waste money. This guide walks you through exactly how to export a clean, verified contact list from Verifycatchall and move it into your marketing tool of choice—without headaches or surprises. It’s for anyone who wants fewer bounces, fewer complaints, and a better shot at hitting the inbox.
Let’s get right to it.
1. Why bother verifying and cleaning your contact list?
If you’re still on the fence: dirty lists don’t just hurt deliverability—they can get your account suspended, burn your sender reputation, and waste money on dead emails. Most “catch-all” or “accept-all” domains (where a server accepts mail for any address) are tricky, because you can’t be 100% sure the mailbox exists. Tools like Verifycatchall help by sorting the wheat from the chaff, so you’re not flying blind.
Bottom line: If you’re sending emails for business, clean and verified lists aren’t optional. They’re table stakes.
2. Prepping your list: What to upload to Verifycatchall
Before you even touch an export button, make sure your original list is in decent shape:
- Format: Stick to CSV or XLS/XLSX. Avoid weird delimiters or Google Sheets exports that sometimes mangle data.
- Required columns: At minimum, have an “Email” column. Add “First Name,” “Last Name,” or other fields if you want to personalize emails later.
- Garbage in, garbage out: Remove obvious junk (test emails, info@, admin@, etc.) beforehand—Verifycatchall can help, but don’t make it work harder than it needs to.
Pro tip: If you’re merging lists from different sources, dedupe them first. No one likes getting the same email twice.
3. Uploading to Verifycatchall
Here’s what you actually do:
- Sign in to your Verifycatchall account.
- Navigate to the upload/import section.
- Choose your file (CSV is safest).
- Map columns if prompted—make sure “Email” matches the right field.
- Start the verification process.
Depending on your list size, this can take a few minutes to a few hours. You’ll usually see progress bars or a status page.
Watch out for:
- Upload errors (formatting issues, bad column headers)
- File size limits (check what your plan allows)
- Slow processing on huge lists—don’t upload 500,000 emails at once if you’re in a rush
4. Understanding your results: What’s “clean” and what’s not
When Verifycatchall is done, you’ll get results like:
- Valid: Good to go, probably deliverable
- Invalid: Bad addresses, typos, non-existent domains—ditch these
- Catch-all: Accept-all domains—riskier, but sometimes worth keeping (more on this below)
- Disposable/role-based: Temporary or generic (admin@, support@)—usually not worth emailing
What to keep:
- Always keep “Valid.”
- “Catch-all” is a judgment call. For B2B, these often work, but expect a few bounces. If your sender reputation is fragile or you’re using a strict ESP, be cautious.
What to toss: - Anything flagged as “Invalid,” “Disposable,” or “Role-based.” Don’t waste your time or risk delivery.
Pro tip: Download separate files for each category if Verifycatchall offers that. It makes filtering later much easier.
5. Exporting your clean list from Verifycatchall
Now, let’s get your list out:
- Go to your completed verification job.
- Filter for “Valid” emails (and “Catch-all” if you’re feeling lucky).
- Export as CSV.
Most marketing tools eat CSVs for breakfast, and there’s less chance of file corruption compared to XLSX.
Double-check: - That your exported file only contains the columns you want (no weird internal IDs or system notes) - That your headers are clear (“Email,” not “ContactEmailAddress123”) - Line endings work—open in Notepad or Excel to check for garbled text
Pro tip: Save a backup of your full results file somewhere safe. If you ever need to go back and re-filter for just “Valid” or “Catch-all,” you’ll be glad you did.
6. Importing into your marketing tool (Mailchimp, HubSpot, others)
Almost every marketing tool has a slightly different import process, but here are the key things to watch for:
General steps
- Log in to your marketing tool.
- Find the Import or Add Contacts section.
- Upload your CSV.
- Map fields (double-check that “Email” is mapped to the right place).
- Review and confirm.
- Check for errors—sometimes, tools will reject blank rows or funky formatting.
Tool-specific quirks to watch out for
- Mailchimp:
Will sometimes block role-based emails even if you didn’t filter them out. You might also hit audience size limits. - HubSpot:
Insists on unique emails—duplicates are dropped silently. - ActiveCampaign, Sendinblue, etc.:
May require explicit opt-in columns or extra consent fields. If you don’t have these, you might need to fudge things or get creative.
Common gotchas: - Date formats: US (MM/DD/YYYY) vs. EU (DD/MM/YYYY) can mess up custom fields. - Encoding: If you see weird characters, export your CSV as UTF-8. - Duplicates: Let your tool dedupe, but don’t rely on it—clean up beforehand.
Pro tip: Import a small “test batch” first. Make sure everything looks right before importing thousands of contacts.
7. What not to waste time on
- Over-complicating your columns:
Don’t try to import every scrap of data if you’re not going to use it. Just stick to what you’ll actually personalize or segment on. - Re-verifying the same list over and over:
Unless your contacts are years old, you don’t need to verify monthly. Once every 6–12 months is usually enough. - Chasing perfection:
You’ll never have a 100% bounce-free list, especially with catch-all domains. Aim for “good enough,” not “zero bounces.”
8. Staying compliant (and out of trouble)
Just because your list is “clean” doesn’t mean it’s permission-based. Most marketing tools—and the law—expect that you actually have consent to email these folks.
- Don’t buy lists:
Even verified, they’ll get you in hot water fast. - Make sure you’re following GDPR/Can-Spam/etc.:
If you’re not sure, ask someone who is. Fines aren’t fun. - Include unsubscribe links:
If your tool doesn’t do this by default, don’t use it.
9. Troubleshooting common headaches
- Missing columns during import:
Go back to your CSV and make sure headers are clear and match your tool’s expected fields. - Bounces still high after cleaning:
It happens, especially with catch-alls. Next time, try being stricter with what you keep. - Spam complaints spike:
Clean lists don’t fix bad targeting. Make sure your emails are wanted and relevant.
Keep it simple and iterate
Getting a clean, verified contact list from Verifycatchall into your marketing tool isn’t rocket science, but it does take a bit of care up front. Don’t overthink it: prep your list, verify and filter, export the good stuff, and import thoughtfully. Test small, fix what breaks, and repeat. The simpler your process, the fewer headaches you’ll have—and the faster you’ll get to sending emails that actually land.
Happy sending.