Problem with gmail and hikvision cameras

Hi all,

I've been using several hikvision network cameras (2512 and 2412 both with 5.3.0 firmware) for a couple of months without any problem.

Suddenly, on the last tuesday, email alerting has stopped working simultaneusly on all the cameras. I tried the test button in the email configuration panel and it says "cannot contact test server".

I'm using a google account with this settings:

smtp.gmail.com

port 465

ssl enabled

username: myaccount@gmail.com

password: (a specific app password, because i have 2 step authentication enabled)

This configuration has worked for a couple of months without any problem.

After the problem came up I rebooted all the cameras and i did those tests:

1) I verified internet connectivity from the camera and it was ok

2) I verified that the camera can resolve hostnames

3) I created a different app password and tried to use it (same error)

4) I tried to use different port (465/587 with or without ssl)

Nothing seems to solve.

I'm absolutely sure email sending was working fine till 17th may 2016.

Anyone else is experiencing something similar ?

Any help is very appreciated, i honestly don't know what else i could try.

Thanks in advance

Dear,

I think the problem is an update of gmail, use for the moment 79.125.68.109 , port 465 ssl with flag, instead of smtp.gmail.com

Dear,

I think the problem is an update of gmail, use for the moment 79.125.68.109 , port 465 ssl with flag, instead of smtp.gmail.com

Thank you for your response.

I tried to directly use one of the ip adresses associated with smtp.gmail.com but the result is the same (identical error).

I didn't try the ip address you are suggesting because it does not appear to be a google ip address. What exactly is that address ? Why do you thing it should work ?