sending mail with attachment using linux commands

[Nimmala]

Hi i am using linux command "cat msgbad1.txt | mail admin@sct.com".
Here msgbad1.txt contains email details as From address and To address and details about attachment in a encrypted format like this text file which follows msgbad1.txt . I want to receive mail with attachment(as a word document(Announcement.doc) using decrypted format) which is mentioned in above text file. Could anybody suggest me on this.

[Nimmala]

Hi i need help on this .

[GNU-Fan]

I don't understand this question.
The regarding RFCs describe the format an email (and its attachments) must have so that a standard mail client can understand it.
Mailing Attachments from UNIX

[Nimmala]

Hi actually msgbad1.txt file contains email details like from address and to address and attachment name and data of attachment in a encrypted format, i need to convert this encrypted content into user understandable format and send it is an attachment to the specified user.

[GNU-Fan]

So you do not know how to decrypt the messy text?

[Nimmala]

yes i am a bit

[GNU-Fan]

How was msgbad1.txt generated?

[Nimmala]

That is we are not sure we got it from client. Actually i got a solution using telnet session but that is not a recommended way of solving problem. I am not sure whether it is possible through cat commands.

[Nimmala]

$ telnet slctests14g.abc.com 25
220 ...
helo slctests14g.abc.com
250 slctests14g.abc.com Hello slctests14g.abc.com, pleased to meet you
mail from:<admin@abc.com>
250 2.1.0 <admin@abc.com>... Sender ok
rcpt to:<admin@abc.com>
250 2.1.5 <admin@abc.com>... Recipient ok
data
354 Enter mail, end with "." on a line by itself
From: admin@abc.com
To: admin@abc.com
Date: Tue, 24 Feb 2009 15:37:00 -0700
Subject: test message

this is a test
.
250 2.0.0 n1OMaVSc005190 Message accepted for delivery
quit
221 2.0.0 slctests14g.sct.com closing connection
Connection closed by foreign host.

$

[GNU-Fan]

The rectangular garbage text block is base64 encoded.
Copy it in your text editor, without the last line (------=_N000_00ED--).

Remove all newlines, so that the whole messy text is one singe long line.

Look for online base64 decoders or type
base64 -d messy.txt > out.doc

This should result in a file you can handle.