Reviewing this thread I still need one point of clarification on this topic:

Background:
I've got a number of distribution lists that are used to send newsletters and items of
similar content, sometimes to tens of thousands of subscribers. Yesterday for the first
time in several years of use I experienced a successful mis-use if one of the
lists. Somebody out "in the wild" successfully sent a mail to one of my major distribution
lists by spoofing thier address. They had simply taken the sender address of a recent
mail to the list, and sent their mail using that as the From: address. 

Is a Send=Owner really that trivial to bypass? Is my only protection against this type of
thing to force a "confirm" as well? I hope not. I want these mailings to be sent by
an umbrella account, that doen't really reach a real person. I'd much prefer being able
to send with a given address, but have a totally different value delivered in the From:
field with the actual mail.

For example, if I had a list with the following:
[log in to unmask]
Send=Owner

Is there any way to send a mail as [log in to unmask] but have the mail reach recipients
as
From: [log in to unmask]

Or am I forced to make all my lists send=owner,confirm?

Andy

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