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Old 02-24-2015, 12:22 AM   #1
tusharsharma43
LQ Newbie
 
Registered: Jan 2010
Location: Vadodara, Gujarat
Distribution: Fedora, OpenSuse, Ubuntu, Mint and Debian
Posts: 22

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Mail using telnet SMTP


Hi All,

I am trying to send email using telnet to smtp as mailx and other functionality is restricted by administrator.

I am not able to figure out as how to attach any text or any file using the below.

I am following all instructions and steps as shown at http://exchange.mvps.org/smtp_frames.htm

1. telnet <servername> 25
2. helo <your domain name><enter>
3. mail from: <your Email Address><enter>
response should be as follows
250 OK - mail from <your Email address>

rcpt to: <recipient address><enter>
response should be as follows
250 OK - Recipient <recipient address>

data<enter>
response should be as follows
354 Send data. End with CRLF.CRLF

To: <recipient's display name><enter>
From: <your display name><enter>
Subject: <Subject field of Email message><enter>
<Enter you body text><enter><enter> . <enter>
response should be as follows
250 OK

quit<enter>
 
Old 02-24-2015, 04:21 AM   #2
TenTenths
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Registered: Aug 2011
Location: Dublin
Distribution: Centos 5 / 6 / 7
Posts: 2,380

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You will need to encode the file you wish to "attach" and then create the appropriate mime/multipart headers.

Good luck with that! There's a reason mail clients were invented.
 
Old 02-24-2015, 07:26 AM   #3
tusharsharma43
LQ Newbie
 
Registered: Jan 2010
Location: Vadodara, Gujarat
Distribution: Fedora, OpenSuse, Ubuntu, Mint and Debian
Posts: 22

Original Poster
Rep: Reputation: 0
Unhappy

Hi,

Thanks for your reply. I searched on same and found few steps, the only issue I am facing is attaching the text file.

Below is what i tried

telnet <servername> <portnumber> 25
ehlo

mail from : my mail id
rcpt to : my mail id

data

Subject :- Test Subject


MIME-Version:1.0
Content-Type: multipart/mixed; boundary=attachmentbound

Content-Type: application/text; name="1.txt"
Content-Transfer-Encoding: base64
Content-Disposition:attachment;filename="1.txt"
aGVsbG8NCndvcmxk (*** base64 encoded of text hello world)



.


Quit.


Here 1.txt is the text file in my home directory with content "hello"

But when I receive the mail, the attachment file 1.txt is empty.

Last edited by tusharsharma43; 02-24-2015 at 07:55 AM.
 
  


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