Based on our record, Email List Verify seems to be more popular. It has been mentiond 2 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.
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: over 1 year ago
Emaillistverify.com is the service I use. Source: over 1 year ago
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
Zero Email App - Think of it as a private Google PageRank for your inbox
ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.
Tomba.io - Tomba is the leading solution to find and verify professional email addresses. Start using Tomba and connect with the people that matter for your business.
Email Verifier - Email verifier app lets you verify email.