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Special Forums Cybersecurity how to hide the IP in the email header? Post 5424 by eddie on Tuesday 14th of August 2001 04:57:58 PM
Old 08-14-2001
huuuuuuu......

Calm down, man. I don't really intend to hide IP in my mail headers. But we ought to know how to do this, right?

OK, let's come back to the original question. I checked the file /etc/sendmail.cf and I found it contained definitions of mail header format. Like following,

  H?P?Return-Path: <$g>
  HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
  H?D?Resent-Date: $a
  H?D?Date: $a
  H?F?Resent-From: $?x$x <$g>$|$g$.
  H?F?From: $?x$x <$g>$|$g$.
  H?x?Full-Name: $x
  H?M?Resent-Message-Id: <$t.$i@$j>
  H?M?Message-Id: $t.$i@$j

I don't think it is easy to understand. Any specialist ever tackled this file? BTW, voodoo, seems something from Africa... Working with voodoo.c may be too difficult for me.

Thanks for your interests!

Eddie

 

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Log::Handler::Output::Sendmail(3pm)			User Contributed Perl Documentation		       Log::Handler::Output::Sendmail(3pm)

NAME
Log::Handler::Output::Sendmail - Log messages with sendmail. SYNOPSIS
use Log::Handler::Output::Sendmail; my $email = Log::Handler::Output::Sendmail->new( from => 'bar@foo.example', to => 'foo@bar.example', subject => 'your subject', ); $email->log(message => $message); DESCRIPTION
With this output module it's possible to log messages via "sendmail". METHODS
new() Call "new()" to create a new Log::Handler::Output::Sendmail object. The following options are possible: from The sender address (From). to The receipient address (To). cc Carbon Copy (Cc). bcc Blind Carbon Copy (Bcc) subject The subject of the mail. sender This option is identical with "sendmail -f". header With this options it's possible to set your own header. my $email = Log::Handler::Output::Sendmail->new( from => 'bar@foo.example', to => 'foo@bar.example', header => 'Content-Type: text/plain; charset= UTF-8', ); Or my $email = Log::Handler::Output::Sendmail->new( header => { From => 'bar@foo.example', To => 'foo@bar.example', Subject => 'my subject', 'Content-Type' => text/plain; charset= UTF-8', } ); Or my $email = Log::Handler::Output::Sendmail->new( header => [ 'From: bar@foo.example', 'To: foo@bar.example', 'Subject: my subject', 'Content-Type: text/plain; charset= UTF-8', ] ); sendmail The default is set to "/usr/sbin/sendmail". params Parameters for "sendmail". The default is set to "-t". maxsize Set the maximum size of the buffer in bytes. All messages will be buffered and if "maxsize" is exceeded the buffer is flushed and the messages will be send as email. The default is set to 1048576 bytes. Set 0 if you want no buffering and send a mail for each log message. debug Set 1 if you want to enable debugging. The messages can be fetched with $SIG{__WARN__}. log() Call "log()" if you want to log a message as email. $email->log(message => "this message will be mailed"); If you pass the level then its placed into the subject: $email->log(message => "foo", level => "INFO"); $email->log(message => "bar", level => "ERROR"); $email->log(message => "baz", level => "DEBUG"); The lowest level is used: Subject: ERROR ... You can pass the level with "Log::Handler" by setting message_pattern => '%L' flush() Call "flush()" if you want to flush the buffered messages. validate() Validate a configuration. reload() Reload with a new configuration. errstr() This function returns the last error message. DESTROY
"DESTROY" is defined and called "flush()". PREREQUISITES
Carp Params::Validate EXPORTS
No exports. REPORT BUGS
Please report all bugs to <jschulz.cpan(at)bloonix.de>. If you send me a mail then add Log::Handler into the subject. AUTHOR
Jonny Schulz <jschulz.cpan(at)bloonix.de>. COPYRIGHT
Copyright (C) 2007-2009 by Jonny Schulz. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-11-21 Log::Handler::Output::Sendmail(3pm)
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