Do not use both sendmail and SMTP on UNIX

03 Troubleshooting

Server
Do not use both sendmail and SMTP on UNIX

Sites with UNIX platforms running the sendmail daemon should not enable the optional SMTP component of Domino on these machines. In the default configurations, each respective program attempts to use port 25 to provide service, but only one will be successful in obtaining the port. Therefore, it is recommended that you enable either the sendmail daemon or the SMTP component, but not both, when SMTP services are required. The normal caveats apply to SMTP services of a machine if the service is not running.