If you are using Postfix with IMSS and have deployed multiple scanner services, you can manage the SMTP routing settings for the scanner services centrally. From the IMSS management console, configure the SMTP settings and apply the same settings to all scanners.

If you are using Sendmail or Qmail, you will need to manually configure the SMTP settings in the respective MTA configuration files. For details, see Preparing Message Transfer Agents section of the IMSS Installation Guide.