KB06082101 Messages returned marked 'Blacklisted'Blacklisted Problems 1). Blacklisted If you are getting email returned to you marked 'Blacklisted' remember that your organization's Senders must either be within the LAN as defined at Options | Server*, to be able to send mail through Mailtraq. If not you will see messages similar to: The following recipient(s) could not be reached: Jane Doe on 8/25/2008 8:17 AM 554 blacklisted (jsmith@domain.com)
In this example John Smith (jsmith) was sending email from a machine that was not included in the LAN definition for (domain.com) and so the message he was tying to send to Jane Doe was rejected by Mailtraq. So - make sure your LAN definition correctly describes your local area network, and the IP addresses your Users will be connecting from. Read how here ... 2). Blacklisted, Relay Access Denied or 550 554 and other 500's messages - External Access Control If you are having unexpected problems with Users being Blacklisted by Mailtraq* (for example, users in your domain but who are outside the LAN), or are getting '554 - Relay Access Denied' or other 550 messages you may need to adjust the Black List properties of the SMTP service they are using. Users who are outside the LAN, for example working from home, and who are sending mail to or through your Mailtraq email server should be doing so on a dedicated SMTP Service on Port 587 using SMTP Authentication (method). You should then adjust the Black List settings as described below on that SMTP service. Adjusting Blacklists  These dialogs, accessed from the SMTP Properties dialog Black Lists Tab, by clicking on the [Explicit Black Lists] button, enable the Black Listing facilities to be configured for each instance of the SMTP Service.
Open the Mailtraq Console*,
Then select Services,
Select the SMTP Service, and right-click for Properties.
The SMTP Service Properties dialog will open.
Select the Blacklists-tab
Click on the [Black Lists] button
When the 'Black List' dialog opens, you will need to select first the Senders-tab (see below left) and then the HELO Hosts-tab (see below right). Senders-tab Uncheck [ ] Reject non-local senders claiming to be local
HELO Hosts-tab Uncheck [ ] Reject remote clients ... Using local HELO arguments
 
These default settings are in place as another layer of protection to reduce the amount of spam your mail system receives. You should avoid removing these settings from your primary SMTP service on Port 25 to avoid an increase in spam. Working with Spam Assassin
If you are using the SpamAssassin feature, and are using the 'Sender Exceptions' options it is important not to remove the above settings from your Port 25 SMTP service.
White List (Exceptions)
*You can also decide whether to White List certain IP Address Ranges, Senders, Recipients or HELO Hosts at the [Exceptions (White List)] button in the dialog above.
Configuration Tips: Controlled Relaying see KB05111702 Allowing controlled Relaying when you need to allow a user who is outside your LAN to send mail via Mailtraq, without becoming an 'open-relay'. General Relay configuration is described here ...
* 554 - Relay Access Denied from other mailservers
If you are getting messages returned as undeliverable with 554 - Relay Access Denied notices, this means that the remote mail server does not want to receive mail from you. The most common reason is that you have not correctly configured your Reverse DNS. There is more information here: www.mailtraq.com/rDNS
Traditional Console
*Open the Mailtraq Console Open the Mailtraq Console,
Select Options from the top-menu,
Then select Services, and when the Service Manager opens,
Select the SMTP Service, and click the Properties button.
The SMTP Service Properties dialog will open.
Select the Blacklists-tab
Click on the [Black Lists] button
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