Smartlead

Smartlead is a cold email outreach platform designed for sales teams, agencies, and founders running lead generation campaigns at scale. It enables users to send personalized email sequences across unlimited mailboxes while using automated warmup features to maintain sender reputation and inbox deliverability. The platform includes a unified inbox (Master Inbox) that consolidates replies from multiple accounts and campaigns into a single view for easier lead management. Smartlead supports multi-channel outreach by integrating email with other touchpoints and offers APIs and webhooks for connecting with CRMs and other sales tools. It is commonly used by B2B agencies and revenue teams that need to manage high-volume, multi-account email campaigns without triggering spam filters.