Free tools · No sign-in
Free email tools for people who send from Gmail
Check that your domain is set up to be trusted, find what could make an email look like spam, and work out how long a list will take. No account, and each tool explains what it finds in plain words.
SPF, DKIM and DMARC checker
A plain status for each record, and the exact record to add if one is missing.
Open the toolSpam word checker
A score out of 100 and a plain fix for each problem. What you type stays in your browser.
Open the toolGmail limit calculator
How many days a list takes on personal Gmail and Google Workspace.
Open the tool