Sending and receiving mails have been significant part of day to day business life, I have been using yahoo mail for 3 months and I left using that service because the main reason was that the loading of all my mails is very slow, not because my internet connection is slow
When I sign in to yahoo mail it take approx 40 to 50 seconds to load and after that all my emails are on the page it also takes time to read each mail and some images does not even loads and it says that the link is broken
And ther are many other features that are not available in yahoo mail such as - undoing the message that we had sent, which can only we done in gmail and not in yahoo mail, so I switch over to using gmail service