03-12-2010
How do I configure sendmail to block all OUTGOING mail FROM one userid TO the world?
Hello,
ENVIRONMENT:
OS: Solaris 10
Sendmail: 8.13.8+Sun
BACKGROUND:
We had a user account that was compromised and was used as a relay. She sent out (or would have if we didn't kill sendmail) ~10K emails alerting people they just won $75K.
The target for this spam was everyone internal to our company and EVERYONE with an @aol.com address, maybe other domains as well, we just stopped looking. Stopping all mail for our company until we took her offline was not a suitable solution.
QUESTION:
Is it possible to configure sendmail as to block ALL OUTGOING email from ONE user? I don't want to shut down mail for the entire organization again. I've seen solutions on how to block INCOMING and how to block outgoing TO targets, but not how to block ALL OUTGOING FROM the sender.
Any help would be greatly appreciated.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi.
I need to set up sendmail so that it can send mail to a mail relay.
I have never touched sendmail before so I am not sure how to do this. All incoming mail is directed to a different server - this is just to enable me to get mail out.
Running Solaris 8 on Sparc.
Many thanks,
... (6 Replies)
Discussion started by: warrend
6 Replies
2. UNIX for Dummies Questions & Answers
Hi my freinds ,
I have RH7.2 I want to send E-mails from the prompt terminal where should I configure POP3 or SMTP also I want to access My hotmail .....I can't access it from MSN site
when I write mail command in the prompt I can't send the mail hoow to send it to the root for example also... (7 Replies)
Discussion started by: atiato
7 Replies
3. UNIX for Dummies Questions & Answers
G'day,
I've a solaris 9 box that I want to configure so that users can send out mails to internet. How can I do it? Can someone pls list me the steps or direct me to a detailed website.
Thanks in advance. (1 Reply)
Discussion started by: Albert J.
1 Replies
4. UNIX for Dummies Questions & Answers
I have a Solaris 2.6 server running sendmail (Version 8.9.3p2). It actually receives email and runs the sendmail process. I need to configure it so that it continues to receive email, but disable its ability to send email out. My initial ideas was to just rename the mail and mailx binaries. But... (0 Replies)
Discussion started by: Rosko
0 Replies
5. UNIX and Linux Applications
Does anyone know what's Sendmail outgoing email rate? e.g. 1000 outgoing email per minutes. If so, can we modify it?
Thanks.
:) (1 Reply)
Discussion started by: sunmagic2003
1 Replies
6. UNIX for Dummies Questions & Answers
I'm using Debian 5.0.4, exim4 and mutt.
I would like all outgoing mail sent by any/all users CC (not BCC) to a specified e-mail account.
(I do have it working for BCC using 'unseen'.)
I have spent hours of searching/reading/testing how and have not been able to find out how.
I have seen it... (0 Replies)
Discussion started by: mewbie
0 Replies
7. UNIX for Advanced & Expert Users
i have sun machines having solaris 9 & 10 OS . Now i need to send mail from the machines to my outlook account . I have the ip adress of OUTLOOK mail server. Now what are the setting i need to do in solaris machines so that i can use mailx or sendmail.
actually i am trying to automate the high... (2 Replies)
Discussion started by: amitranjansahu
2 Replies
8. UNIX for Advanced & Expert Users
Hello, I'm configuring sendmail on an AIX 7.1 server (bos.net.tcp.client 7.1.1.15).
I've gotten sendmail to send mail through our Novell GroupWise server, so that mail from a user on the server appears to come from their GroupWise account, and replies to the email would go to their GroupWise... (0 Replies)
Discussion started by: eyebeam
0 Replies
9. UNIX for Dummies Questions & Answers
On both Solaris 10 and RHEL, we would like to configure sendmail in such a way that the email sent from the server should only go to a particular domain. For eg. We want our server to ONLY send the mail to <user_name>@abc.com. All other domains should be blocked/restricted. The server should not... (0 Replies)
Discussion started by: sk2code
0 Replies
10. HP-UX
Hi,
sendmail on our hp-ux box is changing the userid of the from address. I have searched the web and read the man pages but can't stop this from happening.
We have a process which creates a text file we pass into sendmail. In the text file we write for example:
Return-Path:... (4 Replies)
Discussion started by: rsmitherscorp
4 Replies
LEARN ABOUT DEBIAN
log::handler::output::sendmail
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)