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Knowledgebase : Technical Help > Old versions > IceWarp Mail Server Administration > Email Filtering/Routing
 

Nowadays , unfortunately, it is not rare for a remote system to reject emails from you. If you check the SMTP logs, you will not that right after you connect to a remote system to send an e-mail, you are disconnected, which usually indicates the remote sy...
Intrusion prevention, formerly called tarpitting, is a great feature, which has one main feature of avoiding spam dictionary attacks, where spammers try to send messages to any addresses they have on their dictionary containing thousands of words. If re...
INTRUSION PREVENTION BASICS Intrusion prevention, formerly called tarpitting, is a great feature, which has one main feature of avoiding spam dictionary attacks, where spammers try to send messages to any addresses they have on their dictionary containi...
The following procedure will allow your Users to add email addresses to a global Blacklist by sending an email * Create a new account - e.g. blacklist@yourdomain.com * Create a text file with a short path location - example c:filterfilter.txt *...
This filter is not recommended because most notification messages and some messages from mailing lists are sent with an empty Mail From. To reject such messages you have to create a CONTENT FILTER which will match these messages. Go to the Mail S...
Icewarp Mail Server installs demo accounts during installation. These accounts are set to expire after 30 days but until then, if Icewarp is installed on a production server, these accounts could be exploited by spammers and the like. Basically, a s...
This is a feature of older versions of Outlook and Outlook Express. The winmail.dat file contains data to preserve message formatting. Further details can be found in the Microsoft knowledge base at http://support.microsoft.com/default.aspx?scid=kb;...