Use BriteVerify to check the validity of your email addresses. According to Adam Holden-Bache of email marketing firm Mass Transmit, removing bad addresses will help with deliverability. “ISPs will mark emails as junk or spam if they see too many being sent to bad or invalid email addresses,” Holden-Bache says. “Using this system to purge bad data from your database is helpful.”
You can also use BriteVerify to validate email addresses in real time for things like free downloads (whitepapers, ebooks, etc), access to coupons, sweepstakes entries, etc. It ensures the data you collect is legitimate.
Cost: $0.01 per email address