I just installed inetutils using macports under macOS Mojave, Then I tried to use gtelnet command, to check my email server, but I get an error relative to the DNS resolution, of this type : "Server lookup failure: subdomain.domain.tld:465:telnet, nodename nor servname provided, or not known".

Any help would be appreciated.

  • Can you ping the server? – Allan Mar 15 at 16:27
  • ok, i understud the error: i replaced space by colon so the resolution fails... The right command is gtelnet subdomain.domain.tld 465. Anyway thank you – Fabien Auréjac Mar 15 at 17:09

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