When users delete their email in user profile, the configuration file leaves an empty node in XML user configuration file

<hudson.tasks.Mailer_-UserProperty>
<emailAddress></emailAddress>
</hudson.tasks.Mailer_-UserProperty>

Jenkins then behaves like described here https://issues.jenkins-ci.org/browse/JENKINS-5625

Can you change the hudson.tasks.Mailer.UserProperty#getAddress() implementation to the code sguuested below and this bug will be fixed:

@Exported
public String getAddress()

{ if (emailAddress != null && emailAddress.trim().length() > 0) return emailAddress; // try the inference logic return MailAddressResolver.resolve(user); }

This patch checks that email setting in user profile, and ensures that empty string/setting behaves like there is no setting present and takes generates the correct email address according to valid security realm implementation (if such) or appends default suffix (if deffined).

Thanks.