Email address spoofing
Alex Neuman van der Hans
alex at rtpty.com
Thu Oct 2 18:17:57 IST 2008
Exactly. If they're using someone else's mailservers there is nothing
Stop them from using another server if you really want to solve the
If your users say "but I can't connect to your server" help them out
by using port 465 and port 587 (with and without SSL). Port 25 is not
a prerequisite; in fact, it should be discouraged unless you're a
On Oct 2, 2008, at 11:59 AM, Maxime Gaudreault wrote:
> 2. My mail server already uses authentication. But my customers uses
> their ISP's mail server... not mine.
> 3. I'm not sure I understand but if they don't use my outgoing
> server, I
> can't signs the emails..
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