Mail SMTP

메일서버를 새로 장만했다던지.. 잘 동작하는지 확인하고 싶을때가 있다.

내가 아는 HELO로 문을 두드렸더니.. 싫덴다.

[root@localhost /home/willow]# telnet 192.168.xx.xxx 25

Trying 192.168.xx.xxx...

Connected to 192.168.xx.xxx.

Escape character is '^]'.

HELO 192.168.xx.xxx

554 mail01.willow.co.kr ESMTP not accepting messages

250 mail01.willow.co.kr Hello watchdog.co.kr [192.168.xx.xx], pleased to meet you

MAIL FROM:willow@willow.co.kr

550 5.0.0 Command rejected

그래서 다른 방법

[root@localhost  /home/willow]# telnet 192.168.xx.xxx 25

Trying 192.168.xx.xxx...

Connected to 192.168.xx.xxx.

Escape character is '^]'.

EHLO 192.168.xx.xxx

220 mail01.willow.co.kr ESMTP Sendmail 8.14.3/8.14.3/Debian-9.4; Wed, 16 Oct 2013 19:07:32 +0900; (No UCE/UBE) logging access from: watchdog.co.kr(OK)-watchdog.co.kr [192.168.xx.xx]

250-mail01.willow.co.kr Hello watchdog.co.kr [192.168.xx.xx], pleased to meet you

250-ENHANCEDSTATUSCODES

250-PIPELINING

250-8BITMIME

250-SIZE

250-DSN

250-ETRN

250-AUTH DIGEST-MD5 CRAM-MD5

250-DELIVERBY

250 HELP

MAIL FROM: willow@willow.co.kr

250 2.1.0 willow@willow.co.kr... Sender ok

RCPT TO: greenpine@willow.co.kr

250 2.1.5 greenpine@willow.co.kr... Recipient ok

DATA

354 Enter mail, end with "." on a line by itself

hi! 

comend line mail text.

.

250 2.0.0 r9GA7WUM002960 Message accepted for delivery

RSET

250 2.0.0 Reset state

QUIT

221 2.0.0 mail01.willow.co.kr closing connection

Connection closed by foreign host.

성공~

메일 제목은 Header로 정의해야 하나보다.

+ 구글링하다가 나온 문서 (카페글같다.)

st1_SMTP.txt