On Sat, 2007-04-28 at 08:10 +0100, Graeme Fowler wrote: > is the syntax. So what you'd require is a MAIL FROM of:
>
> MAIL FROM:<user,pass,local_part@fqdn>
...and another thing: this would then be used as the MAIL FROM for
ongoing transactions (being the envelope sender). Unless you have an
appropriate rewrite rule to change it, or use the "return_path"
transport option, you'll leak information which could then be used by
third parties.
The more I think about this, the more I think "don't go there".
