Gmail takes the day off to celebrate Android's fifth birthday
If you're experiencing problems accessing your Gmail account or receiving mail in a timely manner this evening, you're not alone. Some Google services, mainly Gmail, Calendar and Google Drive, seem to be both herping and derping at the time of writing.
Google downtime is pretty rare, and we're sure any outage affecting such prominent services will be looked into swiftly. For what it's worth, the Google apps status page lists Gmail as experiencing an outage, and Drive as being disrupted.