GW2012 base on SLES11
GW2012 base WebAccess on IIS6/W2K3R2

When using WebAccess in Safari (on iPads and iPhones), doing a reply all shows all recipients in the reply, but the response is sent to the sender only. Checking the sent properties shows a reply to the sender only. This is misleading, as it appears to be a reply to all, but is actually a reply to the sender only. We've been able to recreate the issue on multiple Apple devices, so we're hoping SP1 resolves this (although it is not mentioned in the SP1 release notes). Going to apply SP1 in the next couple of weeks, but looking for quick fix. Has anyone heard of this issue? If so, do you know how to resolve?

Thanks in advance,