Tech help please

[takemedrunkimhome]

As a technophobe I am hoping for some
sound tech advise from the knowledgable
brethren on here.

Basically my yahoo email account is thorowing spam
mail to loads of recipients.
Is there any way to fix this without
deleting my account and creating a new one.

I am very reluctant to delete the account as
it is my main one, so an alternative would be great.

Thanks in advance