telnet localhost 25
Connected to localhost.
Escape character is '^]'.
220 hostname.domain.tld ESMTP Postfix (Debian/GNU)
EHLO localhost
250-hostname.domain.tld
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
MAIL FROM: me@myserver.net
250 2.1.0 Ok
RCPT TO: someone@somewhere.net
250 2.1.5 Ok
DATA
354 End data with <CR><LF>.<CR><LF>
Subject: Mail test
zefearfaer
earf
eagfrea
grea
greargtfeva
feagaerfdqc
.
250 2.0.0 Ok: queued as 2DE47C6B

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