SMTP: Difference between revisions

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*[http://www.networksorcery.com/enp/rfc/rfc2821.txt http://www.networksorcery.com/enp/rfc/rfc2821.txt]  
*[http://www.networksorcery.com/enp/rfc/rfc2821.txt http://www.networksorcery.com/enp/rfc/rfc2821.txt]  
*[http://www.port25.com/how-to-check-an-smtp-connection-with-a-manual-telnet-session-2/ How to check an SMTP connection with a manual telnet session]
 


== SMTP reply codes ==
== SMTP reply codes ==

Latest revision as of 10:45, 7 August 2023

Documentation

SMTP reply codes

  • 5.5.0 unavailable (bob knows why)
  • 5.1.1 something wrong on exchange sewer, probably user unknown
  • 5.2.2 over quota


test smtp auth

echo -n "\0username\0password"| base64
openssl s_client -connect smtp.example.com:587 -starttls
HELO somehostname
AUTH PLAIN MzIwOTQyODUyMjYyNg==