NetGuard vs SMTP Diag Tool
A side-by-side look at NetGuard and SMTP Diag Tool. For an in-depth review of either product, follow the links below.
NetGuard
Security & Privacy
NetGuard is an open source firewall app for Android that blocks connections to the internet based on rules you define. It helps protect your privacy and security by restricting what apps can access the network.
firewallprivacysecurityinternet-access-control
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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