SMTP: Difference between revisions

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=Documentation=
*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]


= Documentation =


*[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==
 
*http://www.greenend.org.uk/rjk/2000/05/21/smtp-replies.html
*http://www.networksorcery.com/enp/protocol/smtp.htm
*[http://www.ietf.org/rfc/rfc3463.txt RFC 3464]
*[http://www.fots.nl/index.php/ndr-and-smtp-reply-and-error-codes/]


*5.5.0 unavailable (bob knows why)
== SMTP reply codes ==
*5.1.1 something wrong on exchange sewer, probably user unknown
*5.2.2 over quota


[[Category: Networking]]
*[http://www.greenend.org.uk/rjk/2000/05/21/smtp-replies.html http://www.greenend.org.uk/rjk/2000/05/21/smtp-replies.html]
[[Category: Mail]]
*[http://www.networksorcery.com/enp/protocol/smtp.htm http://www.networksorcery.com/enp/protocol/smtp.htm]
*[http://www.ietf.org/rfc/rfc3463.txt RFC 3464]
*[http://www.fots.nl/index.php/ndr-and-smtp-reply-and-error-codes/ [1]]
 
*5.5.0 unavailable (bob knows why)
*5.1.1 something wrong on exchange sewer, probably user unknown
*5.2.2 over quota
  [[Category:Networking]] [[Category:Mail]]    
 
 
== test smtp auth ==
echo -n "\0username\0password"| base64
openssl s_client -connect smtp.example.com:587 -starttls
HELO somehostname
AUTH PLAIN MzIwOTQyODUyMjYyNg==

Revision as of 09:43, 28 December 2021

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==