Creating issues through email results in an error mail that is send to the original sender

@400000004f7af51214c38764 2012-04-03 14:03:04,348 QuartzWorker-0 WARN ServiceRunner    issues - PoP server [com.atlassian.mail.MailUtils] Unable to extract text from MIME part with Content-Type 'multipart/alternative; boundary=f46d04462fd6b7e2af04bcc5ec5d
@400000004f7af5121729b5dc 2012-04-03 14:03:04,388 QuartzWorker-0 WARN ServiceRunner    issues - PoP server [jmwe.plugins.functions.SetFieldFromUserPropFunction] Unable to find user property [client] on current user

@400000004f7af54e1d56a884 2012-04-03 14:04:04,491 Sending mailitem To='no-reply@<instance>' Subject='(XXX-xxx) New Atlassian test' From='null' FromName='Issue from Email (Created) (JIRA)' Cc='null' Bcc='null' ReplyTo='null' InReplyTo='null' MimeType='text/html' Encoding='UTF-8' Multipart='null' MessageId='null' ERROR ServiceRunner    Mail Queue Service [atlassian.mail.queue.MailQueueImpl] Error occurred in sending e-mail: To='no-reply@<instance>' Subject='(XXX-xxx) New Atlassian test' From='null' FromName='Issue from Email (Created) (JIRA)' Cc='null' Bcc='null' ReplyTo='null' InReplyTo='null' MimeType='text/html' Encoding='UTF-8' Multipart='null' MessageId='null'
@400000004f7af54e1d56f2bc com.atlassian.mail.MailException: javax.mail.SendFailedException: Invalid Addresses;
@400000004f7af54e1d56f6a4   nested exception is:
@400000004f7af54e1d56f6a4 	com.sun.mail.smtp.SMTPAddressFailedException: 550 5.1.1 <no-reply@<instance>>: Recipient address rejected: User unknown in virtual mailbox table
@400000004f7af54e1d56fa8c 
@400000004f7af54e1d56fa8c 	at com.atlassian.mail.server.impl.SMTPMailServerImpl.send(SMTPMailServerImpl.java:179)
@400000004f7af54e1d570644 	at com.atlassian.mail.queue.SingleMailQueueItem.send(SingleMailQueueItem.java:38)
@400000004f7af54e1d570a2c 	at com.atlassian.mail.queue.MailQueueImpl.sendBuffer(MailQueueImpl.java:66)
@400000004f7af54e1d570a2c 	at com.atlassian.jira.service.services.mail.MailQueueService.run(MailQueueService.java:23)
@400000004f7af54e1d570e14 	at com.atlassian.jira.service.JiraServiceContainerImpl.run(JiraServiceContainerImpl.java:60)
@400000004f7af54e1d5711fc 	at com.atlassian.jira.service.ServiceRunner.execute(ServiceRunner.java:47)
@400000004f7af54e1d5715e4 	at org.quartz.core.JobRunShell.run(JobRunShell.java:195)
@400000004f7af54e1d5715e4 	at com.atlassian.multitenant.quartz.MultiTenantThreadPool$MultiTenantRunnable.run(MultiTenantThreadPool.java:72)
@400000004f7af54e1d5719cc 	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520)
@400000004f7af54e1d571db4 Caused by: javax.mail.SendFailedException: Invalid Addresses;
@400000004f7af54e1d57219c   nested exception is:
@400000004f7af54e1d57219c 	com.sun.mail.smtp.SMTPAddressFailedException: 550 5.1.1 <no-reply@<instance>>: Recipient address rejected: User unknown in virtual mailbox table
@400000004f7af54e1d572584 
@400000004f7af54e1d572584 	at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1294)
@400000004f7af54e1d57296c 	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:635)
@400000004f7af54e1d573524 	at alt.javax.mail.TransportImpl.sendMessage(TransportImpl.java:28)
@400000004f7af54e1d573524 	at com.atlassian.mail.server.impl.SMTPMailServerImpl.send(SMTPMailServerImpl.java:160)
@400000004f7af54e1d57390c 	... 8 more
@400000004f7af54e1d57390c Caused by: com.sun.mail.smtp.SMTPAddressFailedException: 550 5.1.1 <no-reply@<instance>>: Recipient address rejected: User unknown in virtual mailbox table
@400000004f7af54e1d5740dc 
@400000004f7af54e1d5740dc 	at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1145)
@400000004f7af54e1d5744c4 	... 11 more