failed mails are bounced back to user www

[Gabucino]

Re-submitting ticket 1484448.

"Mails addressed to nonexistent recipients are bounced back to the "www" user on the host, instead of the sender. Why is that and how to change?"

Additional info, followup:

This is definitely a roundcube bug, because it sends mails (so it's not just an IMAP client) with sender "www@domain", as seen here:

2007-06-25 20:31:13 1I2tLF-0008l1-AS <= www@mail.xxx U=www P=local S=574
2007-06-25 20:31:21 1I2tLF-0008l1-AS => gabor@yyy.be R=dnslookup T=remote_smtp H=mail.yyy.be [192.190.aaa.bbb]
2007-06-25 20:31:21 1I2tLF-0008l1-AS Completed

This is extremely incorrect, because failed mails are NOT bounced back to the correct user. I cannot stress it enough: no other IMAP client does that, either web-based or not. No wonder why.

[thomasb]

This might be a restriction of PHP's mail() function. Try to configure an SMTP server in the RoundCube configuration and RoundCube will not use mail().