Anyone,

I'm sure this is a very simple questions for most of you, but I just
can't seem to find an answer. We use an e-mail gateway company to scan
all of our e-mail for viruses, etc. before we receive it at our mail
server. Therefore, I would like to set up a filter to only accept mail
from their IP address range, but it tends to vary widely. I would like
to set this up as an object, but I'm not sure how to figure out the net
mask.

For example, I want to accept all mail from the following IP address
range:

xxx.xxx.?.?

What net mask do I need to put after the IP address to get this to work?


Thanks,
Mason Landrum

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