Are now two months that I try.
With all configurations (gunzip on / off, cache on / off cycling sql 10, 100, 200 ... 1000)
For my response sitemapindex.xlm Google is always this:
General HTTP error: 404 Not Found
We encountered an error when trying to access your Sitemap. Sure
that your Sitemap follows our guidelines and that it is possible
accessed at the location you provided and then resubmit.
We were unable to read your Sitemap. It may contain an element that we can not recognize. Please validate your Sitemap before resubmitting.
I are frustrated