here is
mail:~ # telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 mail.tchosting.net ESMTP Postfix (2.3.2)
ehlo localhost
250-mail.tchosting.net
250-PIPELINING
250-SIZE 10240000
250-ETRN
250-STARTTLS
250-AUTH LOGIN
250-AUTH=LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
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