I can reproduce this problem (Jenkins 1.425). I created another bug report about a broken link in case the user name is modified (JENKINS-10698). That bug is present without email-ext plugin, but otherwise these seem to be closely related to user name.
Email sending to requester works if "Your name" field in the user data is not modified from its default value (user ID). Plugin finds the correct email address from user data.
Email was triggered for: Success
Sending email for trigger: Success
Sending email to: <correct email address>
Finished: SUCCESS
Emailing requester fails if "Your name" field in user data is changed e.g. to "John Smith". Plugin can no longer find email address from user data.
Email was triggered for: Success
Sending email for trigger: Success
Failed to send e-mail to John Smith because no e-mail address is known, and no default e-mail domain is configured
An attempt to send an e-mail to empty list of recipients, ignored.
Finished: SUCCESS
I had not defined "Default user e-mail suffix" above as our email addresses are of form <first-name>.<last-name>@company.com, not <user-id>@company.com. Defining suffix would result into an attempt to send two emails, one for "John", another for "Smith@<suffix>".
Hi,
can you provide more info on this bug. for example : did this happen after you upgrade from earlier version?
or was the field blank and it did email you ?
a screenshot would help.
Thanks.