RFC6154 and upgrade to Cyrus 2.5

[Per olof Ljungmark]

On 2015-10-16 15:00, Sebastian Hagedorn wrote:
> --On 16. Oktober 2015 14:56:32 +0200 Per olof Ljungmark
> <peo at intersonic.se> wrote:
> 
>> If the xlist folder flags worked in 2.4, why were they removed in 2.5?
> 
> Because XLIST was a hack that was first introduced and then deprecated
> by Google. Leave it to Microsoft to rely on hacks.

OK, I can understand that. But it is still the way you redirect your OL
users to have their sent mail etc ending up in the right place.

This looks like a show stopper for for us to go to 2.5 then.

//per