Could you provide more information about your scenario? In particular, could you explain which settings you want to be automatically discovered and at which step of your scenario?
UPD: We will evaluate the possibility of adding this functionality in the future releases. Note that this feature also depends on your mailing client.
Thank you for your input. We will consider the possibility of implementing this feature in upcoming releases.
— ESMarcel commented
This would be so helpful. Hopefully it will be implemented soon, at least as an extension. Sogo works like a charm and it's features are way better then Roundcube or Horde - plus the design fit's the new Onyx pretty well.