Agreed and I will add that a huge reason Google is used by so many was very effective spam filtering. A huge reason why hosting your own email is hard? Getting filtered by Google because of the massive amount of spam they are blocking.
Spam filtering is a a very difficult thing to do well and Google's implementation was very good, very advanced, and trained on huge amounts of data. Something a normal person could never do on their own server and those who could would be spending a lot of time training the blocker which those using Google never even needed to think of.
Spam filtering is a a very difficult thing to do well and Google's implementation was very good, very advanced, and trained on huge amounts of data. Something a normal person could never do on their own server and those who could would be spending a lot of time training the blocker which those using Google never even needed to think of.