JsonWhois.io vs SMTP Diag Tool
A side-by-side look at JsonWhois.io and SMTP Diag Tool. For an in-depth review of either product, follow the links below.
JsonWhois.io
Development
JsonWhois.io is a JSON-based WHOIS and domain availability API. It allows you to lookup WHOIS records and check domain availability directly from your application code using a simple JSON API.
whoisdomainjsonapi
SMTP Diag Tool
Network & Admin
SMTP Diag Tool is a free, open-source Windows application used to diagnose issues with sending and receiving emails. It can test SMTP servers, validate email addresses, verify DNS records, and check for common email delivery problems.
smtpemaildiagnostictroubleshooting
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