As you can see from the picture something is leaving a timestamp in my Gmail if I leave it open in the browser while AFK.

It is almost always happening every hour and I don't understand why. Does anyone have the same problem?

I don't use any mailing app nor IMAP or POP3.

It also doesn't seem to be happening every hour, sometimes it would miss a couple of hours and then resume. enter image description here

  • A natural thing to do would be to compare the IP address shown to the addresses of your computers. – user79865 May 23 '16 at 6:46
  • The IP is the same as is the session – Alex May 23 '16 at 6:48
  • 4
    So, I'd say what you see is the "heartbeat" activity: it records the fact that the browser keeps an open Gmail session. A useful feature because it makes the existence of this session apparent (otherwise, it'd scroll out of view after a while). – user79865 May 23 '16 at 6:53

This is normal. This is simply the Gmail code in your open browser session checking your mailbox every once in a while to see if it needs to update the message list. Gmail uses AJAX extensively; it doesn't require a page load to do most of what it does.

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