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Why are there problems sending from hotmail to yahoo?
Because of the anonymity possible through Hotmail or Yahoo accounts, both are frequently used by senders of spam. Both services also do spam filtering as a service to their users. Thus they often trap messages from the other as possible spam.
It all comes in opinion. To me yahoo is better, but to some other people hotmail is better.I honestly love yahoo! Everyone has an opinion and love others like hotmail and verizon.
It depends on if you are trying to just send some mail or many things at once-some of them are better for basic sending then others...Gmail would probably be more practical for just sending some...