We have a project in HP ALM which has one set of users with the email address @test.com and another set of users with the email address @testing.com. When I email a defect from HP ALM to @test.com, the email is being sent and received successfully. When I email a defect from HP ALM to @testing.com, the email is failing to be sent.

The error in the log is listed below.
Subject: Failed to deliver message: Default.Test_Project – Defect #12 – TEST_DEFECT

Failed to send mail to invalid email addresses: ‘[JOHN Q TEST ]’
We did as you said and below is the log. It is saying invalid email address but if I send an email from outlook, it is delivered successfully.

Stack Trace:
com.hp.alm.platform.mail.exception.InvalidAddressException: Failed to send mail to invalid email addresses: ‘[JOHN Q TEST < john.test@testing.com>]’
at com.hp.alm.platform.mail.JavaMailHelper.resendToValidMails(JavaMailHelper.java:425)
at com.hp.alm.platform.mail.JavaMailHelper.sendMail(JavaMailHelper.java:324)
at com.hp.alm.platform.mail.JavaMailHelper.sendMail(JavaMailHelper.java:121)
at com.hp.alm.platform.mail.SendAsyncMailTask.run(SendAsyncMailTask.java:64)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

Jan 09
11:00:45.573Jan 09
11:00:45.382asyncMailTaskExecutor-5N/AN/AN/AERRAsyncMailEventListener.mailFailed(65)Failed to send asynchronous mail

com.hp.alm.platform.mail.exception.InvalidAddressException

Messages:
Failed to send mail to invalid email addresses: ‘[JOHN Q TEST < john.test@testing.com>]’;