Re: Sendmail: How does one blacklist annoying spammers?

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On 06/27/2010 12:45 PM, Daniel B. Thurman wrote:

> I wanted to mention that there are some in this posting that
> are recommending greylisting...  but have not said anything
> about how this is implemented into sendmail... so, what is
> your take on this?

yum install milter-greylist

and possibly one of milter-greylist-sysvinit or milter-greylist-upstart
(though mine doesn't seem to be configure with chkconfig)

As for my sendmail.mc changes:

Add

> dnl #
> dnl # Greylist Milter Support
> dnl #
> INPUT_MAIL_FILTER(`greylist',`S=local:/var/run/milter-greylist/milter-greylist.sock', F=, T=C:5m;S:4m;R:4m;E:5m')dnl
> 
> dnl define(`confMILTER_MACROS_CONNECT', confMILTER_MACROS_CONNECT`,{daemon_port}')dnl
> dnl define(`confMILTER_MACROS_HELO',    confMILTER_MACROS_HELO`,{verify},{client_resolve}')dnl                                  
> dnl define(`confMILTER_MACROS_ENVRCPT', confMILTER_MACROS_ENVRCPT`,{client_resolve}')dnl                               
> 
> define(`confMILTER_MACROS_CONNECT', `j, {if_addr}')dnl
> define(`confMILTER_MACROS_HELO', `{verify}, {cert_subject}')dnl
> define(`confMILTER_MACROS_ENVFROM', `i, {auth_authen}')dnl
> define(`confMILTER_MACROS_ENVRCPT', `{greylist}')dnl

to your /etc/mail/sendmail.mc file (in the section on sendmail milter
support) and rebuild it with

/etc/mail/make

> Thanks-
> Dan

-- 
Kevin J. Cummings
kjchome@xxxxxxx
cummings@xxxxxxxxxxxxxxxxxx
cummings@xxxxxxxxxxxxxxxxxxxxxxx
Registered Linux User #1232 (http://counter.li.org)
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