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Top Forums UNIX for Beginners Questions & Answers Answers to Frequently Asked Questions Email Antispam Techniques and Email Filtering allowing others with dynamic IPs to use your email service. Post 34333 by norsk hedensk on Monday 17th of February 2003 12:26:41 PM
Old 02-17-2003
allowing others with dynamic IPs to use your email service.

if you are running pop3 and smtp and wish to allow others to have an email address using your service out side of your local network you may run into a problem; relaying should be disallowed for others out side of your private network, so how do you allow someone with an account that you gave them to use your mail service, without opening your server to be an open relay for anyone who wants to abuse it? this website: http://popbsmtp.sourceforge.net/

provides a great perl utility that will look at successful pop3 logins and then create a temporary database with that users ipaddress and user name. with that you can set your mail server, (postfix, sendmail...) to look at the database and will allow mail relaying for those that have successful pop3 logins. this utility works with various pop3 servers, and the website includes detailed instructions on just exactly how to set it up. all youll hav eto do i tell your users to CHECK their mail first before they try to send it.
 

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Mail::SpamAssassin::Plugin::SpamCop(3)			User Contributed Perl Documentation		    Mail::SpamAssassin::Plugin::SpamCop(3)

NAME
Mail::SpamAssassin::Plugin::SpamCop - perform SpamCop reporting of messages SYNOPSIS
loadplugin Mail::SpamAssassin::Plugin::SpamCop DESCRIPTION
SpamCop is a service for reporting spam. SpamCop determines the origin of unwanted email and reports it to the relevant Internet service providers. By reporting spam, you have a positive impact on the problem. Reporting unsolicited email also helps feed spam filtering systems, including, but not limited to, the SpamCop blacklist used in SpamAssassin as a DNSBL. Note that spam reports sent by this plugin to SpamCop each include the entire spam message. See http://www.spamcop.net/ for more information about SpamCop. USER OPTIONS
spamcop_from_address user@example.com (default: none) This address is used during manual reports to SpamCop as the From: address. You can use your normal email address. If this is not set, a guess will be used as the From: address in SpamCop reports. spamcop_to_address user@example.com (default: generic reporting address) Your customized SpamCop report submission address. You need to obtain this address by registering at "http://www.spamcop.net/". If this is not set, SpamCop reports will go to a generic reporting address for SpamAssassin users and your reports will probably have less weight in the SpamCop system. spamcop_max_report_size (default: 50) Messages larger than this size (in kilobytes) will be truncated in report messages sent to SpamCop. The default setting is the maximum size that SpamCop will accept at the time of release. perl v5.16.3 2011-06-06 Mail::SpamAssassin::Plugin::SpamCop(3)
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