Understanding email SpoofingLocked
I need a little help and understanding please.
35 client Lan SBS 2003 / win2k / winxp etc but not really relevant to the answer that i need.
We are about to bring in BrightMail anti spam.
we have a sonic wall firewall.
we use Sophos anti virus (auto updates etc)
I am NOT looking for a techie answer, OR help to prevent spam and spoofing.
I want to explain to non savvy colleagues and senior managers (very non IT) why we get spam, more importantly why they receive “message undeliverable” emails (spoofed) that they did not send in the first place.
So am i correct in thinking.
a spam filter will bounce / block (most) spam
the “undeliverable message” emails.
So after installing a spam filter my users will “think the problem is cured” because they no longer get told that “emails they didnt send” can’t be delivered ?
OK so this doesn’t stop the rest of the world from receiving emails that look like they come from us.
So is it true that we can block the result of spoofing but not prevent it from happening?
Lastly, a naive question but,
if we all (the whole world) use spam filters and block the “message undeliverable” emails, do they die or just keep wandering around the “ether” slowing it down?
Thanks for any enlightenment that you can give.
Because i want to relay your wisdom, feel free to assume that i am very dumb.
I am willing to give point to all worthy answers.