I need advise on a finish for my Mahogany front doors. The doors are about ten years old and were originally finished with an oil product. The local company that fabricated these is now out of business and I cannot find out what finish they used. The doors became dark with mildew and or mold, I have scrubbed them down with steel wool and washed them down with Clorox then with clear water. I have touched up the stain on a few spots (where I rubbed to hard) and now I need advise on a finish.

I would prefer an oil finish as it is easier to repair.
They are not exposed to direct sunlight but I imagine I would need UV protection in the finish.
Do I need to include an additive to retard mildew and mold.

Appreciate all replies.