Based on our record, CampaignKit should be more popular than Email List Verify. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
End of 2021 I started campaignkit.cc. An Email validation service. I build the first version within a week and put it online. Started some advertisements on Reddit and Twitter. First people started to use it. Source: over 1 year ago
You can try my email validation service: http://campaignkit.cc/. Source: almost 2 years ago
I’m the creator of https://campaignkit.cc and might be a little bit biased though. Source: about 2 years ago
If you're not getting the right email addresses from ContactOut and it's bouncing back, you could always run the email addresses through something like emaillistverify.com to make sure they're valid before you try to email them. (you should do that always anyway to protect your email deliverability). Source: almost 2 years ago
Emaillistverify.com is the service I use. Source: almost 2 years ago
ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
Antideo Email Validator - Antideo Email Validation plugin for WordPress ensures that you get to validate emails in real time
Email Verifier - Email verifier app lets you verify email.
TrueMail.io - TrueMail.io is an email checker service.
Proofy - Quickly validate and verify your email lists.