As of Zanata 3.7 ( email configuration is taken directly from JBoss/WildFly's standalone.xml configuration, using the mail session configured with the JNDI name java:jboss/mail/Default. In the default configuration of JBoss/WildFly, this expects an SMTP server on localhost port 25.

The JNDI strings starting with java:global/zanata/smtp/ are now obsolete. If you have previously configured these values, you will need to change the configuration of the mail session java:jboss/mail/Default to include your preferred SMTP settings.

JBoss's mail session configuration is described on these pages: