MAIL
IBM® Lotus® Domino® uses the maximum message size you specify as the upper limit of the low-priority size range. Before specifying a low-priority size range, you must set a maximum message size.
The size restrictions you set in the Configuration Settings document apply to every message the Router handles, regardless of whether the message is inbound or outbound, routed over IBM® Lotus® Notes® routing or over SMTP. To set a unique size limit on some part of your messaging traffic, you must set up distinct routing paths for that traffic and then create separate Configuration Settings documents for servers on those paths. For example, if you want to place a 500KB limit on inbound SMTP mail and a 1000KB size limit on internal mail, create two Configuration Settings documents: one for the servers that receive mail from the Internet that specifies a 500KB size limit and a second for your internal mail servers that specifies a 1000KB limit.
To set message size restrictions
1. Make sure you already have a Configuration Settings document for the server(s) to be configured.
2. From the IBM® Lotus® Domino® Administrator, click the Configuration tab and expand the Messaging section.
3. Click Configurations.
4. Select the Configuration Settings document for the mail server or servers you want to administer, and click Edit Configuration.
5. Click the Router/SMTP - Restrictions and Controls - Restrictions tab.
6. Complete these fields in the Router Restrictions section, and then click Save & Close: