CampaignKit - Email Validation for marketers. Detect invalid and malicious email addresses in your email lists.
MailRefine - Decrease Email Bouncing With Best Email Verifier
KIRIM.EMAIL Transactional - Single pricing transactional email & email marketing -no recurring fee
ListKit.io - Boost cold email reply rates by 20%. We provide manually verified B2B prospect lists with personalized first lines starting at $1 per lead. Try it now!
Warmup Inbox - Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically.
ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.