Warmbox help you to warm up your cold email inbox to never land in spam anymore 🎉

How does it work? Warmbox algorithm interacts automatically with your inbox, as humans, in order to increase your deliverability. Connect Warmbox to your inbox in seconds. Warmbox will send emails from your inbox. Remove these emails from the Spam folder. Open your emails. Bookmark your emails. Reply to your emails. Your inbox gets warm. Your emails don't land in spam anymore.

Want to give a try? 👉 https://warmbox.ai/

The Bulk Verify system allows you to upload a plain text file such as a CSV or tab delimited list of email addresses to be verified. First the system will remove all duplicates from your list and verify emails are in RFC compliant format. Next all emails are filtered against a constantly updated list of 780+ disposable email providers and your accounts blacklisted addresses to remove any previously failed addresses for free. The system will also check for invalid dns entrys and filter role accounts. Last the system performs a deep cleaning SMTP test that will connect to the destination mail server and check if that mailbox exists and is able to receive mail.

Integrating the Bulk Email Checker Rest API to verify emails that are signing up to your account creation or opt-in forms can instantly decrease your confirmation email bounces by 50%+. The Rest API performs the deep cleaning SMTP test as well as filters against disposable providers and your blacklisted addresses.

Are you using MailChimp, Mailjet, Mailgun, Mandrill, Postmark or SendGrid to send emails? Each service seamlessly integrates with your Bulk Email Checker account to provide additional protection. When sending mail from these services any bounces, spam complaints, unsubscribers, basically anything harmful to your sender score is instantly added to your Bulk Email Checker blacklist to prevent the email address from making its way back into your clean lists ever again.