Sponsored Content
Special Forums Cybersecurity how to hide the IP in the email header? Post 5425 by Neo on Tuesday 14th of August 2001 05:57:41 PM
Old 08-14-2001
Yes, you can monkey with sendmail.cf and have lots of fun. However, there are a lot more header information than the ones you posted, so you have to dig deeper into the headers and how the headers are generated. The sendmail book by OReilly is good for this.


As far a the intent of the SMTP protocol, I don't think there is a documented book on the thoughts of the late Jon Postel why he created the protocol as he did. I don't think that when SMTP was invented, Jon or anyone in their wildest dreams, conceived of how email is vastly used today. Spam, privacy, security, all of the topics were not even in the back-of-the-mind when SMTP the IETF RFC was created. Back then, folks were just trying to send messages between diverse organizations and even the use of the @ system was NOT standard.

So, I think it is a leap of the imagination to discuss what was in the mind of Jon Postel and SMTP mail in 1980s; with the exception of trying to get clumsy and clunky email to work with IMP processors created by BBN Smilie

Suggest folks interested read "Where Wizards Stay Up Late" where this is discussed (the origins of the Internet); and the first (or one of the first) email messages, sent my Professor Kleinrock, to seek his lost razor after a trip.


This book is a must read for all interested in the real origins of the Internet (and not the modern hype).
 

9 More Discussions You Might Find Interesting

1. Linux

Reading the header of a tar file(posix header)

say i have these many file in a directory named exam. 1)/exam/newfolder/link.txt. 2)/exam/newfolder1/ and i create a tar say exam.tar well the problem is, when i read the tar file i dont find any metadata about the directories,as you cannot create a tar containig empty directories. on the... (2 Replies)
Discussion started by: Tanvirk
2 Replies

2. Shell Programming and Scripting

mailx requirement - email body header in bold and data content in normal text

Dear all- I have a requirement to send an email via email with body content which looks something below- Email body contents -------------------- RequestType: Update DateAcctOpened: 1/5/2010 Note that header information and data content should be normal text.. Please advice on... (5 Replies)
Discussion started by: sureshg_sampat
5 Replies

3. Shell Programming and Scripting

Combining header and data and send email without usage of temp file

Dear All- My requirement is as below- Header file $ cat HEADER.txt RequestId: RequestDate: Data file $ cat DATAVAL.txt 1001|2009-03-01 I need to send the combined data below as email body via mailx command ------------------ RequestId:1001 RequestDate:2009-03-01 I would like... (4 Replies)
Discussion started by: sureshg_sampat
4 Replies

4. UNIX for Dummies Questions & Answers

Changing email header information by tweaking sendmail

How can i tweak sendmail configuration files so that the "Received:" field is removed from email header information? Or else can i change Received: (from enswitch@localhost) in email header to something likeReceived: (from xyz@localhost)? ---------- Post updated at 09:57 PM ---------- Previous... (2 Replies)
Discussion started by: proactiveaditya
2 Replies

5. UNIX for Dummies Questions & Answers

Merge all csv files in one folder considering only 1 header row and ignoring header of all others

Friends, I need help with the following in UNIX. Merge all csv files in one folder considering only 1 header row and ignoring header of all other files. FYI - All files are in same format and contains same headers. Thank you (4 Replies)
Discussion started by: Shiny_Roy
4 Replies

6. Shell Programming and Scripting

Manipulate all rows except header, but header should be output as well

Hello There... I have a sample input file .. number:department:amount 125:Market:125.23 126:Hardware store:434.95 127:Video store:7.45 128:Book store:14.32 129:Gasolline:16.10 I will be doing some manipulations on all the records except the header, but the header should always be... (2 Replies)
Discussion started by: juzz4fun
2 Replies

7. Programming

How to hide from UNIX strings - obfuscate or hide a literal or constant?

Hi, I need to somehow pipe the password to a command and run some SQL, for example, something like echo $password | sqlplus -s system @query01.sql To make it not so obvious, I decided to try out writing a small C program that basically just do echo $password. So now I just do x9.out | sqlplus... (8 Replies)
Discussion started by: newbie_01
8 Replies

8. Shell Programming and Scripting

Recursive header for email body

i have added the header also to the script you provided, it is working fine, but I am expecting to get the header over those rows for which the URL or port changes. URL will remain same for few rows and then it change, and once the URL change the header should come, like in below input you can see... (11 Replies)
Discussion started by: mirwasim
11 Replies

9. Shell Programming and Scripting

Find header in a text file and prepend it to all lines until another header is found

I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty. I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies
ftpmail(1)						      General Commands Manual							ftpmail(1)

NAME
ftpmail - FIFO-based Perl script for sending email based on proftpd TransferLog SYNOPSIS
ftpmail [ --help ] [ --fifo fifo-path ] [ --from email-address ] [ --log xferlog-file ] [ --recipient email-address ] [ --subject email- subject ] [ --smtp-server server-address ] [ --attach-file ] [ --auth smtp-auth-info-file ] [ --ignore-users regex-pattern ] [ --watch- users regex-pattern ] DESCRIPTION
ftpmail is a Perl script designed to read ProFTPD's TransferLog log entries, watching for uploads, and to send an automatic email notifica- tion when uploads occur. To use ftpmail , you configure your proftpd daemon to write its TransferLog to a FIFO; the ftpmail program is a FIFO reading program which then processes those log messages. OPTIONS
--help Display a short usage description, including all available options. --attach-file If used, this will cause a copy of the uploaded file to be included, as an attachment, in the generated email. --auth smtp-auth-info-file Configures the path to a file containing SMTP authentication information. The configured file should look like this: user username password password --fifo fifo-path Indicates the path to the FIFO to which proftpd is writing its TransferLog. That is, this is the path that you used for the TransferLog directive in your proftpd.conf. This parameter is REQUIRED. --from email-address Specifies the email address to use in the From email header. This parameter is REQUIRED. --ignore-users regex-pattern Specifies a Perl regular expression. If the uploading user name matches this regular expression, then an email notification is NOT sent; otherwise, an email is sent. --log xferlog-path Since this script reads the TransferLog using FIFOs, the actual TransferLog file is not written by default. Use this option to write the normal TransferLog file, in addition to watching for uploads. --recipient email-address Specifies an email address to which to send an email notification of the upload. This option can be used multiple times to specify multiple recipients. AT LEAST ONE recipient is REQUIRED. --smtp-server server-address Specifies the SMTP server to which to send the email. This parameter is REQUIRED. --subject subject Specify a custom Subject email header for the email sent. The default Subject is: User '$user' uploaded file '$file' via FTP --watch-users regex-pattern Specifies a Perl regular expression. If the uploading user name matches this regular expression, then an email notification is sent; otherwise, no email is sent. FILES
/var/log/xferlog AUTHORS
ProFTPD is written and maintained by a number of people, full credits can be found on http://www.proftpd.org/credits.html SEE ALSO
proftpd(8), xferlog(5) Full documentation on ProFTPD, including configuration and FAQs, is available at http://www.proftpd.org/ For help/support, try the ProFTPD mailing lists, detailed on http://www.proftpd.org/lists.html Report bugs at http://bugs.proftpd.org/ March 2011 ftpmail(1)
All times are GMT -4. The time now is 05:41 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy