She highlighted column A. Hit Start verification .
Then she saw it. Row 1,412. lisa.chen@startup.io – Risky: catch-all detected. Mailmeteor warned: “This server accepts everything. Your real open rate may be inaccurate.” Maya flagged it for Leo. email checker by mailmeteor
The first tick appeared. Valid. Then another. Valid. Then a red . Invalid: mail server not found. She deleted that row. Then yellow. Risky: full inbox. Another yellow. Disposable address. She frowned—someone had signed up with a 10-minute mail. She highlighted column A