Email Whitelist-Blacklist Control

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(Redirected from Wbl)


Maintainer

Originally developed by Darrell May.

stephdl Stéphane de Labrusse AKA Stephdl

Version

Contrib 10:
Contrib 9:
smeserver-wbl
The latest version of smeserver-wbl is available in the SME repository, click on the version number(s) for more information.


Description

This contrib provides a server-manager panel to designate user defined email whitelists and blacklists.

An email whitelist is a list of hosts, domains, or email addresses which will be accepted by SME Server regardless of possible spam content or origin. Administrators should use caution when using whitelists as email coming from whitelisted addresses will bypass many of the mechanisms that SME provides for identifying unsafe email messages.

An email blacklist is a list of hosts, domains, or email addresses that will be blocked all of the time.

Installation

Install of the lastest Email Whitelist-Blacklist package is from the smecontribs repo:

Install package:
yum install --enablerepo=smecontribs smeserver-wbl
yum install --enablerepo=smecontribs smeserver-wbl

Reconfigure machine:

signal-event console-save

or if you prefer to reboot your server

signal-event post-upgrade; signal-event reboot
yum --enablerepo smecontribs install smeserver-wbl

Reconfigure machine:

signal-event console-save

or if you prefer to reboot your server

signal-event post-upgrade; signal-event reboot
Configure:

Once you do this a new menu item will be visable in the Server-Manager on the left hand side, called E-mail WBL. Traffic is scanned and may be blocked due to the various screening methods enabled. Clicking on this will present you with 3 buttons.

You may use this panel to define e-mail white/black lists and RBLs.

RBL's List is used to adjust DNSBL and RHSBL.
[RBLs List]
Black lists are used for rejecting e-mail traffic.
[Black List]
White lists are used for accepting e-mail traffic.
[White List] 

If you press the Black List button you will see the following window.

Email-Reject.jpg

If you press the White List button you will see the following window.

Email-accept.jpg

If you press the RBLs List button you will see the following window.

Wbl rbl.jpg

And finally If you press the SAVE button this will apply any of the changes you made, wait for confirmation message.

Usage Examples

Black Lists: REJECT

Plugin: Helo
Format:
 some.host.domain

Add domains, hostnames, or perl regexp patterns to the <badhelo> config file; one per line.


Important.png Note:
You cannot block HELO IP addresses with this plugin. It is not designed to do that. Please look at other methods such as direct IP blocking via the firewall, or contribs like Fail2ban, GeoIP, xt_tables


https://github.com/smtpd/qpsmtpd/blob/master/plugins/helo

Matches in the <badhelo> config file, including yahoo.com and aol.com, which neither the real Yahoo or the real AOL use, but which spammers use a lot.
Like qmail with the qregex patch, the <badhelo> file can also contain perl regular expressions. In addition to normal regexp processing, a pattern can start with a ! character, and get a negated (!~) match.
Plugin: Badmailfrom
Format:
 @host or user@host
This plugin also supports regular expression matches. This allows special patterns to be denied (e.g. FQDN-VERP, percent hack, bangs, double ats).
Patterns are stored in the format pattern(\s+)response, where pattern is a Perl pattern expression. Don't forget to anchor the pattern (front ^ and back $) if you want to restrict it from matching anywhere in the string.

https://github.com/smtpd/qpsmtpd/blob/master/plugins/badmailfrom


White Lists: ACCEPT

Whitelisthosts

see this post http://forums.contribs.org/index.php/topic,51429.0.html

Single IP

192.168.10.1

Subnets

192.168.10. (be careful - with no trailing . you match 192.168.100 - 192.168.109. )
192.168
WhitelistHELO
host.domain.com
Whitelistsenders
joe@foo.com
foo.com

Known Issues

See bugs below

Bugs

Please raise bugs under the SME Contribs section in bugzilla .

IDProductVersionStatusSummary (6 tasks)
11678SME Contribs10.0rcCONFIRMEDMULTIPLE_RPM_OWNERS
10472SME ContribsFuturCONFIRMEDNFR Add subnet checking to whitelist hosts
10117SME ContribsFuturCONFIRMEDadd support for URIBL
9276SME Contribs8.2CONFIRMEDdesign and documentation of qpsmtpd wbl vs spamassassin white or black lists
9275SME Contribs8.2CONFIRMEDwbl whitelist status switch does nothing in server manager
4664SME Contribs7.3CONFIRMEDRedesign wbl dbase to improve efficiency

Changelog

Only released version in smecontrib are listed here.

smeserver-wbl Changelog: SME 10 (smecontribs)
2021/09/08 Terry Fage 0.5.0-5.sme
- fix reference update in server manager [SME: 11687]
2021/08/25 Terry Fage 0.5.0-4.sme
- apply locale 2021-08-25 patch
2021/03/15 Jean-Philippe Pialasse 0.5.0-3.sme
- fix reference to spamd and panel link [SME: 10948]
2020/11/28 Michel Begue 0.5.0-02.sme
- Back to compatibility with e-smith-manager [SME: 10948]

2020/06/08 Michel Begue 0.5.0-01.sme
- initial release for smeserver-manager (sme10)

- [0.3.0-19.sme9]