I have installed postfix and start postfix service .
I can send email from user root to user debian8 by telnet command.
root@pengsir:/home/debian8# telnet localhost 25 Trying ::1... Connected to localhost. Escape character is '^]'. 220 pengsir.hfi ESMTP Postfix (Debian/GNU) ehlo mail 250-pengsir.hfi 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN mail from:<root> 250 2.1.0 Ok rcpt to:<debian8> 250 2.1.5 Ok data 354 End data with <CR><LF>.<CR><LF> this is a test mail send from root . 250 2.0.0 Ok: queued as CA53CF82C3 quit 221 2.0.0 Bye Connection closed by foreign host.
Let’s change user debian8 to receive the email.
root@pengsir:/home/debian8# su debian8 debian8@pengsir:~$ mail Mail version 8.1.2 01/15/2001. Type ? for help. "/var/mail/debian8": 1 messages 1 new 1 unread N 1 email@example.com Wed Aug 19 10:10 13/441 & 1 Message 1: From firstname.lastname@example.org Wed Aug 19 10:10:56 2015 X-Original-To: debian8 Date: Wed, 19 Aug 2015 10:10:23 +0800 (HKT) From: email@example.com this is a test mail send from root & quit
It is strange that i can not send email with
mail -s 'test_for_postfix' firstname.lastname@example.org mailx -s 'test_for_postfix' email@example.com
It look like that the cursor will be stop in the console forever ,no error info putput when to execute the two commands.
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