>Is it possible to have my customers that use a certain class A to be
>authenticated when sending mail.
controlpanel:smtpsecurity, click the "relay for addresses" and then enter
the ip's, nets, and subnets that you "trust". Imail with "authenticate"
all incoming mail as being from within this set of trusted ip's.
>While my other customer that use my 2 class C IP addresses don't have to
>be authenticated.
hmmm, afaics, once you've turned on "relay for addresses", you're either in
the tent or outside the tent.
The 2 x Class C senders would have to use some other kind of SMTP
authentification, such as "SMTP AUTH" to overcome not being in the trusted
ip ranges.
Len
Please visit http://www.ipswitch.com/support/mailing-lists.html
to be removed from this list.
