Re: ISP forcing SSL on connections to SMTP servers

Is your SMTP connector connected to Exchange or IIS? DNS will only route
names not ports. To route your public domain name to your exchange server,
you have to create a mail exchange (MX) record in your DNS that points to
your server machine.

Example: you have www.mydomain.com, your internal domain is internal.local
and your server's machine name is myserver.

In DNS, make a new Host(A) record in Forward Lookup Zones called
'mydomain.com'. It's Start of Authority(SoA) needs to be internal.local (i
think it automatically sets this via Active Directory(AD)). In the forward
lookup zone, mydomain.com, make a new Mail Exchanger(MX) record. Leave the
child domain name blank and set the FQDN of the mail server to
myserver.internal.local. When incoming mail hits port 25, the DNS routes
user@xxxxxxxxxxxx to the SMTP connector on myserver.internal.local. I have
no idea if the port number is any different for SSL email or if it jsut
shares 443 with other services.


.

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