0016960: Invalid recipient stops email notifications

ID	Project	Category	View Status	Date Submitted	Last Update
0016960	mantisbt	email	public	2014-02-12 10:33	2014-02-15 12:16

Reporter	Ulli.John	Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	acknowledged	Resolution	open
Platform	Linux inside virtualbox	OS	openSUSE	OS Version	12.1.12
Product Version	1.2.16

Summary	0016960: Invalid recipient stops email notifications
Description	Email in send queue with an invalid recipient (rejected by SMTP server) is sent again and again and never removed from send queue. Other emails in queue are never sent.
Steps To Reproduce	Email notifications work as expected, confirm with /admin/test_email.php Administrator modifies email address of an existing user to "John.Doe@example.com" Assign an issue to this user -> email is sent to user Configured SMTP Server (Microsoft ESMTP MAIL) answers with "550 5.7.1 Unable to relay" "...mailbox unavailable" Mantis sends "QUIT" and tries no further emails. From now on all further (valid) emails ends up in queue (check with admin/email_queue.php ) and are never tried to send. Email with invalid recipient is never removed from queue. Tested with Mantis 1.2.15 and 1.2.16. Cron triggers send_emails.php every minute.
Additional Information	Seems to be as same problem as 0012345: Mantis may stop to send email when it encounters an invalid email address (But I am unable to reopen it.) Problem can only(?) be solved with admin/email_queue.php
Tags	No tags attached.

related to	0012345	closed	dregad	Mantis may stop to send email when it encounters an invalid email address
related to	0016070	closed	vboctor	Delay due to Mantis trying sending emails to non existent address