Mail Problems

Subject: Mail Problems
Date: Wed, 28 Nov 2001 10:03:53 +1100
Hi everyone

There are a few members who have unfortunately picked up one or another of the 
nasty v-i-r-u-s-e-s going around.  There are extensive filters in place to 
prevent most of these from being sent out via the mailing list itself, as well 
as  message size limit of 20Kb that usually blocks these sort of messages (and 
many commercial ones).

A number of members have received infected mail recently - that's because 
infected systems usually reply automatically to messages received (or to a 
random selection of these).  Birding-aus is set up so that when a message is 
REPLIED to the reply goes to the ORIGINAL sender and not the mailing list.  I 
can't change that - it is a condition of the host, Vicnet. 

So ... 
1. member xyz sends a message to the list

2. it is received by member abc whose system is already infected with a worm or 
other v-i-r-u-s 

3. the v-i-r-u-s forces an automatic reply (to the original sender) that 
includes an attachment.  This attachment usually has a file extension that 
tricks windows into opening the attachment, and PRESTO!  Another person's 
computer is infected.

How do you stay safe?  Set up your email program and/or web browser to NEVER 
open attachments, and make sure you never open any manually unless (A) you know 
who they come from and more importantly (B) you know WHAT the attachment is and 
WHY it has been sent to you.

A good policy is to NEVER open an attachment without doble-checking its source 
and validity with the sender.

And some people wonder why we frown on attachments on this mailing list......

Russell Woodford
List Administrator
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