"I have a friend who uses gmail and when he send an email I do not get it. It does not go to my spam either."?

Check your blocked list---you may have accidentally blocked his address.


Mail page%26gt;%26gt;options (top right)%26gt;%26gt;mail options (if available)%26gt;%26gt;block addresses. IF you find his address on the list--click on it--click "remove block".