[imp] possible bug, Not sure if this has been discussed

[Kenny Olano]

I get this error when I click the empty trash button at the top while I am
reading a message that is in the trash folder.

Notice: Undefined index: 2 in /var/www/html/mail/horde/imp/message.php on
line 260

Warning: Cannot add header information - headers already sent by (output
started at /var/www/html/mail/horde/imp/message.php:260) in
/var/www/html/mail/horde/imp/message.php on line 458