Testing MTA

From Coolscript
Revision as of 18:09, 16 August 2021 by Admin (talk | contribs) (→‎Imap Test)
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Imap Test

  • Encrypted login
openssl s_client -crlf -connect mail.server.com:993
a1 LOGIN username password

SMTP Test

  • Get logon credentilas
echo -ne '\0USERNMAE\0PASSWORD' | base64
XYZ== 
root@vm-auto:~# openssl s_client -connect relayhost.example.com:25 -starttls smtp
#-OR-
root@vm-auto:~# openssl s_client -connect relayhost.example.com:587 -starttls smtp
  • Login Port 25/583
root@vm-auto:~# openssl s_client -connect mail.mailtower.de:25 -starttls smtp
#-OR-
root@vm-auto:~# openssl s_client -connect mail.mailtower.de:583 -starttls smtp
  • Authenticate
AUTH PLAIN XYZ==
235 2.0.0 OK Authenticated