Errors uploading and displaying Yandex.Mail

Sometimes the buttons stop working in Yandex.Mail, files won't attach, or the browser reports that there is an error.

Select your issue:

Why the email counter isn't working correctly and how to fix it:

The browser doesn't display the page correctly

To reduce the amount of data you use, the browser saves the pages you visited in the cache. When you view pages again, the browser may load them from the cache. For example, if your browser loads your inbox page from the cache, you will not see a current counter value.

Try refreshing the page so that the browser has to load it from the internet. If the problem persists, clear the browser cache and delete all cookies.

Extensions block Yandex.Mail

Yandex.Mail may not work properly due to certain browser extensions or add-ons. You can temporarily disable them to determine if this is the case. If Yandex.Mail is not working properly because of an adblocker or antivirus extension, add the Yandex.Mail page as an exception for that extension. For more on how to add Yandex services to adblocker exceptions, see Configure the AdBlock Plus extension to work with Yandex.

Why page elements don't display and how to fix the problem:

The browser doesn't display the page correctly

To reduce the amount of data you use, the browser saves the pages you visited in the cache. When you view pages again, the browser may load them from the cache. For example, if your browser loads your inbox page from the cache, you will not see a current counter value.

Try refreshing the page so that the browser has to load it from the internet. If the problem persists, clear the browser cache and delete all cookies.

Extensions block Yandex.Mail

Yandex.Mail may not work properly due to certain browser extensions or add-ons. You can temporarily disable them to determine if this is the case. If Yandex.Mail is not working properly because of an adblocker or antivirus extension, add the Yandex.Mail page as an exception for that extension. For more on how to add Yandex services to adblocker exceptions, see Configure the AdBlock Plus extension to work with Yandex.

You are using an outdated browser

Outdated browsers may not support technology that makes it possible to load pages quickly. Install the latest version of your browser.

Internet speed decreased

Close all the browser tabs other than Yandex.Mail. Turn off the app using the internet and reload the page.

Why isn't the full version of Yandex.Mail available and how to get it:
You are using an outdated browser

Outdated browsers may not support technology that makes it possible to load pages quickly. Install the latest version of your browser.

The wrong compatibility mode is selected in Internet Explorer 8 and higher.

If you are using compatibility mode in Internet Explorer 8 and higher, this may cause errors.

Set the Browser mode and Document mode parameters in correspondence with your browser version.

  1. Press the F12 button or select menu option Developer tools.
  2. Click and select your browser version.
    Note. If you use Internet Explorer version 11 or higher, select the Edge value.
Extensions block Yandex.Mail

Yandex.Mail may not work properly due to certain browser extensions or add-ons. You can temporarily disable them to determine if this is the case. If Yandex.Mail is not working properly because of an adblocker or antivirus extension, add the Yandex.Mail page as an exception for that extension. For more on how to add Yandex services to adblocker exceptions, see Configure the AdBlock Plus extension to work with Yandex.

Hieroglyphics or unintelligible characters appear when the page encoding is incorrect. Encoding may change viruses or malware.

Check your computer for viruses using a free antivirus program: CureIt! from Dr.Web or the Virus Removal Tool from “Kaspersky Lab”.

Why email doesn't display correctly and how to fix the problem:
Extensions block Yandex.Mail

Yandex.Mail may not work properly due to certain browser extensions or add-ons. You can temporarily disable them to determine if this is the case. If Yandex.Mail is not working properly because of an adblocker or antivirus extension, add the Yandex.Mail page as an exception for that extension. For more on how to add Yandex services to adblocker exceptions, see Configure the AdBlock Plus extension to work with Yandex.

Internet speed decreased

Close all the browser tabs other than Yandex.Mail. Turn off the app using the internet and reload the page.

A problem occurred with the internet connection

To check it, go to Yandex.Mail using the mobile internet. If this error persists, please contact your provider. If you are using a work email, tell your system administrator about the problem.

Extensions block Yandex.Mail

Yandex.Mail may not work properly due to certain browser extensions or add-ons. You can temporarily disable them to determine if this is the case. If Yandex.Mail is not working properly because of an adblocker or antivirus extension, add the Yandex.Mail page as an exception for that extension. For more on how to add Yandex services to adblocker exceptions, see Configure the AdBlock Plus extension to work with Yandex.

If a page doesn't load or loads slowly, you will see this message:
  • “An error occurred”.
  • “Try refreshing the browser tab or just wait a few minutes and try again”.

  • “Please wait...”.

  • “It is taking a long time to load the page”.

  • “Try refreshing the page or use the light version of Yandex.Mail”.

Why pages don't load and how to fix the problem:

The browser doesn't display the page correctly

To reduce the amount of data you use, the browser saves the pages you visited in the cache. When you view pages again, the browser may load them from the cache. For example, if your browser loads your inbox page from the cache, you will not see a current counter value.

Try refreshing the page so that the browser has to load it from the internet. If the problem persists, clear the browser cache and delete all cookies.

Extensions block Yandex.Mail

Yandex.Mail may not work properly due to certain browser extensions or add-ons. You can temporarily disable them to determine if this is the case. If Yandex.Mail is not working properly because of an adblocker or antivirus extension, add the Yandex.Mail page as an exception for that extension. For more on how to add Yandex services to adblocker exceptions, see Configure the AdBlock Plus extension to work with Yandex.

You are using an outdated browser

Outdated browsers may not support technology that makes it possible to load pages quickly. Install the latest version of your browser.

If the recommendations above didn't help, it might be due to the following reasons:

Internet speed decreased

Close all the browser tabs other than Yandex.Mail. Turn off the app using the internet and reload the page.

A problem occurred with the internet connection

To check it, go to Yandex.Mail using the mobile internet. If this error persists, please contact your provider. If you are using a work email, tell your system administrator about the problem.

The wrong compatibility mode is selected in Internet Explorer 8 and higher.

If you are using compatibility mode in Internet Explorer 8 and higher, this may cause errors.

Set the Browser mode and Document mode parameters in correspondence with your browser version.

  1. Press the F12 button or select menu option Developer tools.
  2. Click and select your browser version.
    Note. If you use Internet Explorer version 11 or higher, select the Edge value.

Messages about security certificate errors begin with the following phrase:

  • “Your connection is not protected”.
  • “This site presents a security threat to your computer”.
  • “Incorrect certificate”.
  • “Error in security certificate”.
  • “This is an untrusted connection”.

Why there is a security certificate error and how to fix the problem:

Errors related to an insecure connection or invalid security certificate may be caused by a conflict between your browser and computer settings. Errors may also occur due to an antivirus program. To locate the cause of a certificate error, look for its code at the end of the message.

Error codeSolution
  • ssl_error_bad_cert_domain
Make sure that the correct address is entered in your browser's address bar — mail.yandex.com or passport.yandex.com, and that the / symbol is after com rather than a period or some other symbol.
  • err_cert_date_invalid
  • sec_error_oscp_invalid_signing_cert
  • sec_error_expired_issuer_certificate
  • sec_error_expired_certificate
  • sec_error_ocsp_future_response
Make sure that your date and time are correctly set on your computer. If they are not set correctly, then the system may incorrectly determine that the certificate period hasn't started yet or that it has already expired.
  • err_cert_common_name_invalid
  • err_cert_authority_invalid
  • sec_error_unknown_issuer
Make sure that your antivirus settings are not configured to check HTTPS-connections. For more information about how to do this using Kaspersky Internet Security and ESET NOD32 Smart Security, read the section under the table.

If you do not have an antivirus program on your computer, hackers may switch your security certificate using malware or an MITM attack. Check your computer for viruses using free antivirus programs: CureIt! from Dr.Web or the Virus Removal Tool from “Kaspersky Lab”.

Disabling verification of HTTPS connections in Kaspersky Internet Security
  1. Open the antivirus window and click in the lower-left corner.
  2. Go to Advanced and select Network.

  3. In the Check protected connections section, select the Don't check protected connections value and confirm your choice.
Disabling verifications of HTTPS connections in ESET NOD32 Smart Security
  1. Open the antivirus window, go to Settings, and click Advanced.
  2. In the Web and email → SSL/TLS section, disable the Enable filtration of SSL/TLS protocol option.
  3. Under Web and email → Web access protection → Web protocols → Settings for HTTPS scanning module , disable the Scan HTTPS protocol option.
  4. Click OK to save changes.