My Oracle Support Banner

'Could not connect to SMTP host:' Signaled When Attempting To Use The Email Notification Service In EDQ (Doc ID 1380034.1)

Last updated on JULY 02, 2018

Applies to:

Oracle Watchlist Screening - Version 4.2.1 and later
Oracle Enterprise Data Quality - Version 7.2.0 and later
Information in this document applies to any platform.
currency checked 30-Aug-2013


When using the email notification service in EDQ, the main0.log log file found in [Install Path]\config\logs contains the following exception:

WARNING: 21-Nov-2011 11:04:35: Could not connect to SMTP host:, port: 25
javax.mail.MessagingException: Could not connect to SMTP host:, port: 25;
nested exception is: Connection refused: connect
at com.sun.mail.smtp.SMTPTransport.openServer(
at com.sun.mail.smtp.SMTPTransport.protocolConnect(
at javax.mail.Service.connect(
at javax.mail.Service.connect(
at javax.mail.Service.connect(


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.