happyDeliver is described as 'An open-source email deliverability testing platform that analyzes test emails and provides detailed deliverability reports with scoring' and is an app. There are three alternatives to happyDeliver for Web-based. The best happyDeliver alternative is Unspam.email, which is free. Other great apps like happyDeliver are Mailchecker and mail tester.
Unspam.email is an online spam tester tool for emails. It helps to improve the deliverability and reputation of your email campaigns.
Unspam.email is the most popular Web-based alternative to happyDeliver.
Unspam.email is the most popular free alternative to happyDeliver.
Mailchecker is a system that evaluates the quality of your email. It allows you to check whether a message will be perceived as valuable and likely reach your inbox, or rather treated as suspicious and sent directly to the SPAM folder or bounced by incoming server.
mail-tester.com is a free online service that allows you to test your emails for Spam, Malformed Content and Mail Server Configuration problems.
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