Telnet SMTP with expect or shell script

Posted by Fendrix on Stack Overflow See other posts from Stack Overflow or by Fendrix
Published on 2012-09-07T14:58:24Z Indexed on 2012/09/07 15:38 UTC
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Filed under:

regex

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linux

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shell

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expect

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ubuntu-12.04

Want to build up a Auth Smtp Connection with expect script... just to test I wanted to get ehlo parameters but expect is not working like this

#!/usr/bin/expect
set timeout -1
set smtp [lindex $argv 0]
set port [lindex $argv 1]
spawn telnet $smtp $port
expect "[2]{2,}[0]{1,}"
send "ehlo"

I expect the code 220 to come from mailserver to continue to send ehlo ... just like

..../...:telnet smtp.mail.yahoo.de 25
Trying 77.238.184.85...
Connected to smtp2-de.mail.vip.ukl.yahoo.com.
Escape character is '^]'.
220 smtp116.mail.ukl.yahoo.com ESMTP
ehlo
250-smtp116.mail.ukl.yahoo.com
250-AUTH LOGIN PLAIN XYMCOOKIE
250-PIPELINING
250-SIZE 41697280
250 8BITMIME

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