Email Verification Built for Podcasters

Booking great guests means pitching people who never gave you their address. Verify every email with VeriMails so your outreach reaches hosts, publicists, and producers instead of bouncing.

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TLDR

The short version: verify first, then send.

Guest research sheets and newsletter exports go stale between seasons. Verify addresses before pitching guests, sponsors, or subscribers so the emails that grow the show reach live inboxes.

Bulk verification Verification API Catch-all detection See pricing

VeriMails podcaster guest and subscriber email verification workflow — Clean guest research sheets, sponsor contacts, and subscriber exports before the booking or promotion email goes out.

Why podcasters need email verification

Growing a show runs on two email lists, and both fill up with addresses that quietly hurt deliverability.

Most shows grow on the strength of two very different email lists. The first is your guest pipeline: a working spreadsheet of hosts, founders, authors, and publicists you want on the show, built from contact pages, LinkedIn, and educated guesses. The second is your audience list: listeners who subscribed for show notes, episode resources, or a newsletter. Both lists decay, but in different ways. The guest list is full of addresses nobody handed you, so a meaningful share are simply wrong. The audience list was accurate at signup but erodes as listeners change jobs and abandon inboxes. Send to either list without verifying and the bounces stack up against the one inbox you use to book guests and grow the show. Bulk verification keeps both lists clean so your outreach and your newsletter both reach real people.

Guest pitches go to found addresses

You pitch hosts and experts using addresses pulled from websites, LinkedIn, or a best guess. Many are outdated, wrong, or belong to someone who has moved on.

Bounces sink your reply rate

For outreach, bounce rates above a couple of percent signal a list problem. Bad addresses do not just fail to land, they pull down every metric you use to judge your pitch.

One inbox runs the whole show

Most podcasters pitch from a single personal or show inbox. If bounces damage that domain, your booking emails start landing in spam and your pipeline dries up.

Newsletter lists go stale

Listeners who subscribe to your show notes or newsletter change jobs and abandon old inboxes. Addresses that signed up last year can be dead today.

Sign-up forms collect junk

Free episode resources and giveaways draw fake and disposable addresses from people who want the download without the emails. They add cost and bounce risk.

Spam traps end up on old lists

Addresses that go inactive can be turned into spam traps. Hitting one on a stale subscriber list can quietly damage your sender reputation.

How VeriMails helps podcasters

Verification fits both sides of your show: guest booking and audience growth.

Verify guest lists before you pitch

Run your prospective-guest list through VeriMails before a booking sprint. Drop the invalid addresses and keep your bounce rate low so your inbox stays trusted.

Bulk-verify your subscriber list

Export a CSV from your newsletter platform. VeriMails auto-maps the email column and verifies the file as a background job.

Catch new sign-ups via API

Call the REST API the moment a listener subscribes through your site, so invalid and disposable addresses are caught before they reach your list.

Spot role-based addresses

Role-based detection flags shared addresses like info@ or press@. For guest outreach you can decide which to keep and which to skip in favor of a direct contact.

Catch-all detection

Many media and agency domains accept every address. VeriMails flags catch-all domains so you know which pitches carry uncertainty before you send.

Layered verification

Each address gets syntax, MX, DNS, and a live SMTP handshake, plus catch-all, disposable, and role-based detection.

How it works

From a list of guests or subscribers to clean, sendable addresses in minutes.

Gather your list

Pull together your prospective-guest spreadsheet or export your newsletter subscribers as a CSV. Any file with an email column works.

Upload and verify

Drop the file into VeriMails. The email column maps automatically and the file runs as a background verification job.

Send with confidence

Filter to valid addresses, suppress the rest, and run your guest pitch or newsletter knowing it reaches real inboxes.

SMTP

Live mailbox checks

API

Real-time checks

CSV

Bulk verification

100

Free starting credits

Podcast outreach verification checklist

Clean the lists that power guest booking, sponsor outreach, and listener newsletters.

Verify before pitching

Check guest research sheets. Addresses from bios, press pages, and old appearances go stale quickly.
Separate guests, sponsors, and listeners. Each audience has a different risk level and follow-up cadence.
Suppress invalid addresses before campaigns. Protect the inbox you use for bookings before sending a batch of pitches.
Review role inboxes. press@ and booking@ can be useful, but personal guest addresses usually convert better.
Re-verify seasonal lists. Clean guest and sponsor lists before every new season or major booking sprint.

Where verification fits

Moment	Verify	Use next
Guest booking	Research lists and media contacts	Bulk verification
Newsletter signup	New listener opt-ins	Verification API
Sponsor outreach	Brand and agency contacts	Cold email workflow

A clean outreach list helps keep booking replies, sponsor conversations, and audience updates in the same trusted inbox.

Pricing that suits an independent show

Verification starts at $0.0019 per email, so cleaning a guest list or a newsletter before you send costs very little. A 10,000 credit pack is $19, and credit packs scale up to 5 million credits for $1,499. If you pitch and publish on a steady schedule, monthly subscriptions run from $15 to $299 per month. Every new account gets 100 free credits with no credit card, and credits never expire, so you can verify whenever your booking calendar calls for it. See full pricing →

Half the guest emails I found used to bounce, and it was quietly hurting my whole inbox. I verify every booking list now, and my pitches actually get seen by the people I am trying to reach.

Marcus T. — Independent Podcast Host, United States

Frequently asked questions

Everything podcasters need to know about email verification.

Guest pitches usually go to addresses you found rather than addresses someone gave you. Contact pages go stale, guessed addresses miss, and people leave the companies listed on their bio. Verifying each address before you send keeps your bounce rate low and protects the inbox you rely on for bookings.

Yes. Mailbox providers like Gmail and Outlook track bounces against your sending domain. A run of bounced pitches lowers your reputation, and once that happens even your good pitches start landing in spam. Verifying first keeps invalid addresses out of your sends so your domain stays trusted.

Yes. Export your subscriber list as a CSV and upload it to VeriMails. The email column maps automatically and the verification job runs in the background. Re-verifying every couple of months removes addresses that have gone dead since signup.

Each address gets syntax, MX, DNS, SMTP-level checks, catch-all detection, disposable detection, and role-based detection, giving you a clearer view of list quality before you send.

Verification starts at $0.0019 per email. A 10,000 credit pack is $19 and credit packs scale up to 5 million credits for $1,499. Monthly subscriptions run from $15 to $299 per month. Every account starts with 100 free credits, no credit card is required, and credits never expire.

Start verifying emails today

100 free credits. No credit card required.

Get started for free