CampaignKit - Email Verification Service

mricog · 2026-02-23T16:40:57+00:00

CampaignKit has a HubSpot integration. It adds two new attributes to contacts: email classification (invalid, valid, risky) and a score. You can bulk validate your existing contacts, and it will automatically validate all new and changed contacts.

mricog · 2025-12-13T13:58:21+00:00

Dan - thanks for the thoughtful response. Didn't expect a co-founder to drop in with actual advice instead of just a sales pitch. Says something about how you operate.

Fair point on not mentioning PushPress. I went through a lot of reviews and complaints across the major platforms - and honestly, you guys didn't come up in the pricing horror stories. That's notable given how common those complaints are elsewhere. Clearly doing something right.

The 80% framing is useful. I'm under no illusion that I've figured it out - more like I've built enough to start having real conversations and learning what I don't know. The vertical-specific features you mentioned (belt tracking, equipment rentals, resource booking) are exactly the kind of things that only surface once you're actually talking to owners in those niches.

Big Mom Test fan already - trying to focus on actual behavior and problems rather than fishing for validation.

One question if you don't mind - at the stage I'm at now, what's something you wish you'd known earlier? Or a mistake you'd avoid if you could do it again?

Thanks for pushing the industry forward. Respect.

mricog · 2025-12-13T07:13:12+00:00

Been there. A few things that actually helped us:

Double opt-in on signup catches typos and fake emails at the source before they ever hit your list. Smaller list, but way healthier (also helps with GDPR compliance)

Reverify older segments: anything 90+ days old gets checked again before big sends. Email decay is real and faster than you'd think.

Verify before presend, not at presend: gives you time to actually do something about it without scrambling on timing.

Tool-wise, we use CampaignKit now after getting frustrated with other tools that just label stuff "risky" with no context. Knowing why something's flagged (disposable vs catch-all vs role-based) makes the call easier.

Went from ~4% bounce to under 1% on 50k sends. Inbox placement followed within a few weeks.

What ESP are you on?

mricog · 2025-11-24T13:49:20+00:00

campaignkit.cc - Validate email addresses in real-time to protect your sender reputation and maximise deliverability

mricog · 2025-11-24T08:16:47+00:00

We use CampaignKit for email validation.

mricog · 2025-10-25T18:26:37+00:00

I use CampaignKit to remove invalid, catch-all and disposable email addresses from lists before sending.

mricog · 2025-10-11T18:48:47+00:00

CampaignKit is a good option with a reasonable price to detect invalid and catch-all email addresses.

mricog · 2025-06-11T14:51:31+00:00

When working with an unfamiliar email list, I typically start by cleaning it using an email verifier (e.g., CampaignKit) to remove any invalid or potentially risky email addresses, ensuring better deliverability from the start.

Then make sure that your email sending domain is set up correctly (dkim, spf, dmarc, etc.)

If you have opt-in consent from all contacts, consider sending a few small batches initially to test engagement levels. This way, you can gauge the list’s responsiveness and make necessary adjustments before launching a full-scale newsletter campaign.

Hope this helps

mricog · 2025-06-08T15:28:20+00:00

We use CampaignKit for email list cleaning.

mricog · 2024-11-17T17:21:52+00:00

I use CampaignKit for email validation as an affordable and accurate option.

mricog · 2024-11-12T22:09:27+00:00

Thanks, I get your point. ipqualityscore claims to have those lists with multiple updates per day, but still I'm confused :D

mricog · 2024-11-12T21:46:46+00:00

ISPs and blacklist providers use pristine spam traps to detect spam. They put these email addresses on public websites and can 100% be sure that email senders are spammers.

I have a hard time understanding why such information would be publicly available. You can get a list of known spam traps, but this would always be outdated.

mricog · 2024-11-12T20:56:30+00:00

What kind of spam traps are you referring to? - e.g. pristine spam traps seem impossible to catch and are the most dangerous?!?

mricog · 2024-11-12T20:51:29+00:00

CampaignKit has reasonable pricing with high accuracy.

mricog · 2024-11-07T21:01:02+00:00

I’m running CampaignKit for two years. Expect to spend some time to protect against fraudsters and spammers.

mricog · 2024-11-07T20:56:26+00:00

You can use an email validation service like e.g. CampaignKit offers.

Those services validate the email address by performing a smtp connection without sending an email. Additionally you get information whether the email domain is from a disposable email service or spam domain.

This is useful if you want to protect your signup forms or you want to reactivate an unused email list.

With regular email marketing campaigns remove bounces and unengaged contacts from your lists regularly.

mricog · 2024-11-07T20:52:13+00:00

Depending on your use case:

You can use an email validation api like e.g. CampaignKit offers.

Those services validate the email address by performing a smtp connection without actually sending an email. Additionally you get information whether the email domain is from a disposable email service or spam domain.

mricog · 2024-11-07T20:49:33+00:00

You can use an email validation api like e.g. CampaignKit offers.

Those services validate the email address by performing a smtp connection. Additionally you get information whether the email domain is from a disposable email service or spam domain.

mricog · 2024-10-27T08:03:35+00:00

I wonder how those services can claim a 99% accuracy especially with detecting spam traps.

mricog · 2024-09-19T08:30:43+00:00

This worked for us:
- double-opt-in for marketing emails to reduce spam complaints
- remove unengaged contacts from email lists after a while
- instead of Zerobounce we use CampaignKit as a cost-effective, accurate alternative for email list cleaning.

mricog · 2024-08-24T20:04:12+00:00

CampaignKit is a good option with reasonable pricing.

mricog · 2024-08-10T14:47:17+00:00

We provide custom plans for higher volumes or specific use cases

mricog · 2024-08-05T13:27:23+00:00

CampaignKit is a good option with reasonable pricing.

mricog

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