devon_banks@comcast.net schrieb:
> Why are you sending your email via your ISP when you have an SMTP
> server?
> I ask because I recently got the same email message about security from
> my ISP.
> But I currently have my internal email clients using my sendmail server
> as the SMTP server and the clients are pulling POP3 from the ISP and my
> internal POP3 server.

Because, for fear of spam, more and more ISPs reject mail if you are not
in their accepted IP-address range.

Uwe