Is there a way to manually place an address in the watermark?

Richard Bliss's picture
Submitted by Richard Bliss on August 28, 2007 - 1:10pm.

Leslie of Bay District Schools asks about placing an address in the watermark with GWAVA.

Charles Taite, CTO of GWAVA responds.
The Novell GroupWise Solution

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Leslie,

A watermark is more then a whitelist of an email address or domain. It associates an email address/domain with the senders email server IP address located in the MIME header. GWAVA 4 then monitors conversation threads between your GroupWise server and the watermarked email server for auto-learning purposes. The other purpose of watermarking is to help detect spoofed addresses. If an email is received from one of the watermarked email addresses/domains, but the MIME header doesn't contain the watermarked IP address, the message MAY be spoofed and is subjected to GWAVA 4's regular spam tests.

So, if you were to simply place an email address/domain into the watermarker, it would not be helpful (the IP address from the MIME header is critical). If all you want to do is whitelist an address/domain and don't care about spoofing, then use GWAVA's traditional exceptions menu.

If you want GWAVA to auto-train off all mail coming from a particular address/domain and are not concerned about it being spoofed, then do the following... In my example, the domain I want to train from will be NOVELL.COM:

1. Create a "Source Address Filter" for *@NOVELL.COM , but do not select any of the checkboxes. This means GWAVA will look for mail from NOVELL.COM, but will not block it.
2. Under the "Antispam" menu, click on "Non-spam auto-learn" and then click on "Training sources for spam".
3. Drill down and select the NOVELL.COM source address filter.
4. Click on "Save"

The net effect of this is that any inbound mail from NOVELL.COM will be used for auto-training purposes.

Charles Taite

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