Email Tools
SMTP Connectivity Checker
Check whether a domain's mail server is reachable on standard SMTP ports (25, 465, 587).
Enter a domain to check whether its mail server is reachable on standard SMTP ports (25, 465, 587). No authentication is attempted.
Checks TCP reachability only - no authentication or SMTP commands are sent.
JustChecker monitors your mail server's reachability continuously.
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