When you cannot breastfeed your child, do you prefer give him formula milk or find a breastmilk donor?

I have no problems breastfeeding, but if I could not produce breastmilk, I wouldn't use donated breastmilk. I am uncomfortable with the idea of my baby drinking someone else's breast milk, so I would exhaust all means to breastfeed before turning to formula. Donated breast milk is risky because there's a chance that the donor has underlying medical issues which she herself might not be aware of. It's also customised to her own baby and might not be suitable for yours. If you really want to get donated breast milk, try to get it from a donor whose baby is similar in age to yours.