Deleted emails from are greyed out in there inbox when logging in

[adocorp]

I have a problem where user would delete emails from in there inbox using IMAP but roundcube will still show the deleted email in there inbox but show as greyed out.

All deleted emails should end up in the Trash.

Using Thunderbird btw

[SKaero]

Its a know problem with Thunderbird http://trac.roundcube.net/wiki/Howto_KnownIssues

Messages I've deleted in Thunderbird show up in Roundcube

This is actually a Thunderbird issue: https://bugzilla.mozilla.org/show_bug.cgi?id=220064 If you'd like to see this issue addressed please vote for this ticket.

UPDATE: As of Thunderbird 2.0 there is a hidden property named mail.imap.expunge_after_delete which will correct this issue if set to true. Please see the bug listed above for more details.