10 More Discussions You Might Find Interesting
1. UNIX and Linux Applications
I want to create mailing list in my directory, however standart object classes groupOfUniqueNames and groupOfNames don't contain mail attribute. What is the common way to create mailing list in openldap? (0 Replies)
Discussion started by: urello
2. UNIX for Dummies Questions & Answers
I have a few questions.
I am new to UNIX/Linux. At work I notice that our mail server uses sendmail. When I looked in the sendmail.cf file I see that it is using PROCMAIL as the Local Delivery Agent.
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3. UNIX for Dummies Questions & Answers
I am running a email server on Centos 5.3 (dovecot, postfix, with emails for a few domains) and I am wondering whether I am using procmail or not.
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Locking strategies: dotlocking, fcntl()
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4. Shell Programming and Scripting
I have to create a unix program that will mail the contents of a file to a list of users.The file to be mailed will be provided as an argument to the program on the command line. The list of users or mail recipients should be a ”variable” that is created inside the program
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5. UNIX for Advanced & Expert Users
I need to find out for sure whether or not Solaris 10x86 comes with procmail installed? I only need it for mail subscription "Only"
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Discussion started by: parente
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I was wondering if my code is correct on a procmail recipe I am trying to use. I am trying to set up custom filter for for my email address. What needs to happen is any email NOT addressed to me in the to: or cc: field is deleted.
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Discussion started by: Hexabah
7. Forum Support Area for Unregistered Users & Account Problems
I am intrested in joining of this forum. I want to know that is "Mailing List" is supported to send a query or not.
Sanju kumar (1 Reply)
Discussion started by: Sanju Kumar
8. UNIX for Advanced & Expert Users
I'm searching for mailing list software to install on my Linux RedHat 7.3 with Web interface if possible. Any suggestions???
Thank you all
solvman (3 Replies)
Discussion started by: solvman
9. UNIX for Dummies Questions & Answers
I want to make a filter with procmail, using the day of the week ant the hour to filter the message.
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I tried... (1 Reply)
Discussion started by: luiz_fer10
10. UNIX for Dummies Questions & Answers
Somebody knows a good procmail tutorial in the net?
Thanks!:) (1 Reply)
Discussion started by: luiz_fer10
SMRSH(8) System Manager's Manual SMRSH(8)
smrsh - restricted shell for sendmail
smrsh -c command
The smrsh program is intended as a replacement for sh for use in the ``prog'' mailer in sendmail(8) configuration files. It sharply limits
the commands that can be run using the ``|program'' syntax of sendmail in order to improve the over all security of your system. Briefly,
even if a ``bad guy'' can get sendmail to run a program without going through an alias or forward file, smrsh limits the set of programs
that he or she can execute.
Briefly, smrsh limits programs to be in a single directory, by default /etc/smrsh, allowing the system administrator to choose the set of
acceptable commands, and to the shell builtin commands ``exec'', ``exit'', and ``echo''. It also rejects any commands with the characters
``', `<', `>', `;', `$', `(', `)', `
' (carriage return), or `
' (newline) on the command line to prevent ``end run'' attacks. It allows
``||'' and ``&&'' to enable commands like: ``"|exec /usr/local/bin/filter || exit 75"''
Initial pathnames on programs are stripped, so forwarding to ``/usr/ucb/vacation'', ``/usr/bin/vacation'', ``/home/server/mydir/bin/vaca-
tion'', and ``vacation'' all actually forward to ``/etc/smrsh/vacation''.
System administrators should be conservative about populating the /etc/smrsh directory. For example, a reasonable additions is vaca-
tion(1), and the like. No matter how brow-beaten you may be, never include any shell or shell-like program (such as perl(1)) in the
/etc/smrsh directory. Note that this does not restrict the use of shell or perl scripts in the sm.bin directory (using the ``#!'' syntax);
it simply disallows execution of arbitrary programs. Also, including mail filtering programs such as procmail(1) is a very bad idea.
procmail(1) allows users to run arbitrary programs in their procmailrc(5).
/etc/smrsh - directory for restricted programs
$Date: 2004/08/06 03:55:35 $ SMRSH(8)