While the SMTP MTA component was an add-on in Notes/Domino 4.5, it is now part of Notes 4.6.x. If you didn't select it while installing the server originally, re-launch an install, and select SMTP MTA to be installed.
Basically, you just need to create a directory where incoming and ougoing (SMTP.BOX) messages will be handled. Once SMTP MTA is installed, create or modifiy the documents below, and run SMTP MTA.
Basics
Connection type:
SMTP
Usage priority:
Normal
Source server:
AcmeSrv/ACME
Destination server:
Connect via:
Direct connection
Destination domain:
Internet
Relay host:
Scheduled Connection
Routing and Replication
Connection:
ENABLED
Tasks:
SMTP Mail Routing
Call at times:
08:00 AM - 10:00 PM each day
Route at once if:
5 messages pending
Repeat interval of:
360 minutes
Routing cost:
1
Days of week:
Sun, Mon, Tue, Wed, Thu, Fri, Sat
Basics
Restrictions
Domain type:
Foreign SMTP Domain
Allow mail only from domains:
Deny mail from domains:
Messages Addressed to:
Should be Routed to:
Internet Domain:
*.*
Domain name:
Internet
or,
Internet host:
Basics
Members
Domain type:
Global Domain
Notes domains and aliases:
AGDS
Global domain name:
AGDSGlobal
Alias separator character:
=
Global domain role:
SMTP MTA
Use as default Global Domain (for use with all Internet protocols except HTTP):
Yes
SMTP Address Conversion
X.400 Address Conversion
Outbound mail restriction:
Unrestricted
Outbound mail restriction:
Restrict to global domain
Address format:
Name and Address
Country name:
Internet domain suffix:
AcmeSrv.acme.com
ADMD name:
(ADMD = single space)
Internet address lookup:
If disabled or no match,
Disabled
convert as follows:
PRMD name:
Local part formed from:
Full name
Notes domain attribute:
None
Notes domain(s) included:
All
DDA type:
LD
Notes domain(s) position:
Left of '@'
Notes domain separator:
% - percent sign
Address example:
"Jane M. Doe" <JMD%dom1%dom2%dom3@acme.com>
General
Control
Global domain name:
AGDSGlobal
Poll for new messages every:
60 seconds
Fully qualified Internet host name:
AcmeSrv.acme.com
MTA work path:
F:\SRV\SMTPTMP
MTA administrator:
Frederic Faure
Log level:
Normal
Enable daily housekeeping: <FONT FACE="Helv,Arial" SIZE=