You can provide an patch:
https://github.com/roundcube/roundcubemail/pulls
Cheers.
Michael Heydekamp schreef op 2013-07-02 20:50:
Am 02.07.2013 09:03, schrieb A.L.E.C:
On 07/01/2013 09:56 PM, Michael Heydekamp wrote:
In the meantime I realized that t-online.de (where I'm having an account as well, which I'm importing via fetchmail/POP3 into Roundcube) does also produce those still unsupported "X-Envelope-To:" headers.
Open a ticket.
Or re-open #1488553?
This is one of the cases where I'd like to be able to simply commit a patch...
Cheers,