Email open and click tracker for Gmail, Outlook, Zoho Mail, Roundcube, Hostinger Mail and more.
Free
One server, in email. Email open and click tracker for Gmail, Outlook, Zoho Mail, Roundcube, Hostinger Mail and more.
Email open and click tracker for Gmail, Outlook, Zoho Mail, Roundcube, Hostinger Mail and more.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.