Bad email data kills deliverability. A list with 15% invalid addresses inflates bounce rates, damages your sender reputation with Gmail and Outlook, and corrupts the metrics you rely on to make decisions. Recovery takes months. This guide breaks down the best email verification tools in 2026, what separates good from great, and how to choose […]
Generate domain ideas for cold email
Check your inbox placement score
Validate your email authentication
Check if your domain or IP is blacklisted
Test if your email lands in spam
Click on your profile icon in the bottom-left corner, then select “Settings” from the dropdown menu.
In the Integrations page, click on the “API Keys” tab in the left sidebar.
If you already have an API key with the all:read scope, you can use that key.
If not, click the “Create API Key” button, select the all:read scope, and make sure to save your new API key somewhere safe.
Click on the “Settings” option in the top right corner profile icon.
In the Settings page, under your profile picture, you can see the SmartLead API Key.
If you already have an API key displayed, you can use that key. If not, click the “Generate API Key” button to create a new one.
