504 Error Setting up SMTP Server

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Symptoms

An error occurs when sending a test email:

com.atlassian.mail.MailException: javax.mail.MessagingException: 504 Command parameter not implemented

	at com.atlassian.mail.server.impl.SMTPMailServerImpl.send(SMTPMailServerImpl.java:191)
	at com.atlassian.confluence.admin.actions.mail.SendTestEmailAction.execute(SendTestEmailAction.java:52)
	at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:168)
	at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)

Cause

The host name is not set to the FQDN (Fully Qualified Domain Name).

Resolution

  1. Use the "hostname" command to set the host to the FQDN (Fully Qualified Domain Name).

  2. Change:

    % hostname
myhost

    To:

    % hostname
myhost.mydomain.com

Last modified on Mar 30, 2016

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