multiple emails sent!!

I am having a problem with my phone. when I send a pic from my phone to my e-mail, a yahoo account, I will receive it at least 50-75 times into my e-mail account. This is driving me crazy!! Also there are times that I send a pic to my e-mail that it will take 24 hours before it arrives into my e-mail! This phone has been nothing but frustration for me!! I should of stuck with the I-Phone!!