Configuring desktop email clients

Configure IMAP-based client

When using the IMAP protocol, the email client syncs with the server and saves the structure of folders in your mailbox. Messages that you send from the email client will be saved both on your computer and on the server, and you can access them from various devices.

Enable IMAP protocol before configuring your email client:

  1. Open  → All settings.
  2. Select Email clients.
  3. Enable the From imap.yandex.ru server via IMAP option.
  4. Save the changes.

To set up an email client for the IMAP protocol, you need to specify the following:

Incoming mail
  • mail server address — imap.yandex.com
  • connection security — SSL
  • port — 993
Outgoing mail
  • mail server address — smtp.yandex.com
  • connection security — SSL
  • port — 465

For access to the mail server, provide your Yandex username and password (or the application password if you enabled two-factor authentication). If you are configuring email delivery from a mailbox such as “login@yandex.com, your username is the first part of the address before the “@” sign.

Attention. We do not recommend using your provider's mail server for sending mail in your name on Yandex.

IMAP support will be enabled automatically the first time you log in to the mail program.

Configure POP3-based client

When using POP3, all messages from the folders that you select in the menu Settings → Email clients will be saved by the mail client on your computer in the Inbox. If necessary, you can set up filters in the email client to automatically move messages to the desired folders. Messages you send will only be saved on your computer.

Note. When you download email from the server over POP3, Yandex.Mail automatically saves a copy of each message, but you can delete them from the web interface. To remove email using an email client, use IMAP.

Enable POP3 protocol before configuring your email client:

  1. Open  → All settings.
  2. Select Email clients.
  3. Enable the From pop.yandex.ru server via POP3 option.
  4. Save the changes.

To set up a mail client for the POP3 protocol, you must specify the following:

Incoming mail
  • mail server address — pop.yandex.com
  • connection security — SSL
  • port — 995
Outgoing mail
  • mail server address — smtp.yandex.com
  • connection security — SSL
  • port — 465

For access to the mail server, provide your Yandex username and password (or the application password if you enabled two-factor authentication). If you are configuring email delivery from a mailbox such as “login@yandex.com, your username is the first part of the address before the “@” sign.

Attention. We do not recommend using your provider's mail server for sending mail in your name on Yandex.

You can set up message delivery over POP3 from any folder, including Spam. To do this, go to Settings → Email clients and select the folders.

By default, when downloading folder contents using email clients, messages are not marked as read. If you want to mark the received messages as read, enable the corresponding option.

Problems with the email client

The mail client gives me an error message

Select the message you received:

"No connection with server"

If you receive a message that there is no connection with the server, try reentering your username and password in the web interface.

Note. If you enabled two-factor authentication, use the application password.

Make sure that the protocol you want to use is checked in Email clients.

Make sure the settings of your mail program are configured exactly as given below:

  • for IMAP addresses imap.yandex.ru and port 993 with SSL
  • for SMTP addresses smtp.yandex.ru and port 465 with SSL
  • for POP3 addresses pop.yandex.ru and port 995 with SSL

See Data in transit encryption for more details on checking server settings in different mail clients.

“Authentication required”, “Sender address rejected: Access denied” or “Send auth command first”

If you see a message that says “Authentication required”, “Sender address rejected: Access denied” or “Send auth command first”, authorization for the Yandex SMTP server is disabled in the mail client settings. Make sure that the Check user authentication (for Outlook Express) or SMTP authentication (for The Bat!) is enabled.

“Sender address rejected: not owned by auth user”

If you receive the message “Sender address rejected: not owned by auth user”, the address you are trying to send a message from does not match the username under which you are authenticated at the SMTP server. Make sure the mail program's reply-to address is configured to the address the username of which is used in SMTP authorization settings.

“Login failure or POP3 disabled”

If you receive the message “Username failure or POP3 disabled”, the mail program cannot access the mailbox over POP3. Make sure you have entered the right password for your mailbox and POP3 access is enabled on the settings page.

Note. If you enabled two-factor authentication, use the application password.
“Message rejected under suspicion of SPAM”

If you receive “Message rejected under suspicion of SPAM”, it means that Yandex.Mail determined that the contents of your email were spam. To resolve the problem, open the Yandex.Mail web interface and send a test email. This shows the system that messages are not being sent by a robot.

Also, check your computer for viruses using free antivirus programs, like CureIt! from Dr.Web and Virus Removal Tool from “Kaspersky Lab”.

For more information, see the I got a message "Email can't be sent" section.

A mail program does not receive or send emails

If an email program does not receive or send emails, check your email client settings and your internet connection settings.

If you use an anti-virus program, firewall, or proxy server, disable them and see if the problem persists.

Enter your valid personal information in Yandex.Passport and link your phone number to your account. It may be that our security system considers your account suspicious and blocked the mailbox. This usually happens if you don't link a phone number to your mailbox or enter a fake name in Yandex.Passport. The block is automatically removed after 24 hours. If you try to send an email during this time, the block is extended for another 24 hours.

Messages have disappeared from the mailbox

Read our step-by-step email search instructions. Before you start, open Yandex.Mail in a new tab.

Select a problem:

When you delete an email message, it is sent to the Trash folder, where it is stored for 30 days. Messages can be restored during this period:

  1. Go to Trash.
  2. Select the messages you want want to restore.
  3. Click To folder.
  4. Choose the folder where you want to move the selected messages, like Inbox.

Email deleted longer than one month ago cannot be restored — they are permanently removed from the Yandex.Mail servers.

If email messages are not in the folder where they should be, they probably ended up in another folder, such as Trash or Spam. If you remember the sender's name or address or a part of the message text or subject, try to search for the message in all the folders in your mailbox.

Did you find the email?

You can recover email:

  1. Go to the folder where you found the email.
  2. Select the messages you want want to restore.
  3. Click To folder.
  4. Choose the folder where you want to move the selected messages, like Inbox.
Why email disappears and how to avoid this

Emails is stored in the Trash folder for 30 days and in the Spam folder for 10 days. Afterwards, they are permanently removed from the Yandex servers. Why email may end up in these folders without your knowing it:

Another user has access to your mailbox

Messages may be deleted by a user who has access to your mailbox if you forgot to log out on someone else's device. To close the session, click Log out from all devices in the account menu. You can also do this on the Passports page from the link Log out on all computers.

Go to the session history log and check for any delete email operations.

Ограничение. The log stores about 2000 operations. If more than 2000 actions were performed after the messages were deleted, data on the delete operation will not be displayed in the log.

If you are sure that only you have access to your mailbox, test your computer with an antivirus software, change the password and alternative address. Also check if there are any unknown numbers on the Phone numbers page.

Email gets lost in the email client

If you use an email client and delete email in it, messages are removed from the service page as well. You can delete messages from the client, but leave them in Yandex.Mail by configure the client using POP3, but we don't recommend this as messages might not sync correctly with the server.

This is a filter that deletes or moves email messages
Make sure there are no mail filters that delete incoming messages or move them to other folders. If this is the case, temporarily disable them and check if messages arrive in your Inbox folder.

If you don't find the email manually or with a search, this means they can't be restored — they have been permanently removed from the Yandex.Mail servers.

Why email disappears and how to avoid this

Emails is stored in the Trash folder for 30 days and in the Spam folder for 10 days. Afterwards, they are permanently removed from the Yandex servers. Why email may end up in these folders without your knowing it:

Another user has access to your mailbox

Messages may be deleted by a user who has access to your mailbox if you forgot to log out on someone else's device. To close the session, click Log out from all devices in the account menu. You can also do this on the Passports page from the link Log out on all computers.

Go to the session history log and check for any delete email operations.

Ограничение. The log stores about 2000 operations. If more than 2000 actions were performed after the messages were deleted, data on the delete operation will not be displayed in the log.

If you are sure that only you have access to your mailbox, test your computer with an antivirus software, change the password and alternative address. Also check if there are any unknown numbers on the Phone numbers page.

Email gets lost in the email client

If you use an email client and delete email in it, messages are removed from the service page as well. You can delete messages from the client, but leave them in Yandex.Mail by configure the client using POP3, but we don't recommend this as messages might not sync correctly with the server.

This is a filter that deletes or moves email messages
Make sure there are no mail filters that delete incoming messages or move them to other folders. If this is the case, temporarily disable them and check if messages arrive in your Inbox folder.

If new messages are not in the Inbox, they most likely ended up in another folder, such as Trash or Spam. If you remember the sender's name or address or a part of the message text or subject, try to search for the message in all the folders in your mailbox.

Did you find the email?

If you found the email in Trash, Spam or another folder, you most likely set up filters that delete messages or move them to Spam or another folder. If this is the case, disable them temporarily and check if the messages arrive in your Inbox.

If the new messages are still missing, check that you entered your email address correctly on the website you expect to receive email from. Find out if the sender wrote your email address correctly.

Check that the site's or sender's email address hasn't been blacklisted.

Enter your valid personal information in Yandex.Passport and link your phone number to your account. It may be that our security system considers your account suspicious and blocked the mailbox. This usually happens if you don't link a phone number to your mailbox or enter a fake name in Yandex.Passport. The block is automatically removed after 24 hours. If you try to send an email during this time, the block is extended for another 24 hours.

Emails are not deleted in my mail client

If you delete email in your mail client, but they are still in Yandex.Mail, it is likely that your mail client uses POP3. Due to certain features of the POP3 protocol, email client mail may not sync correctly with the server. We recommend using the IMAP protocol for Yandex.Mail. For details on how to switch between POP3 and IMAP, see Switching from POP3.

Sent mail is not displayed in my mail client

If your mail client doesn't display sent email, it probably means that it uses POP3. Due to certain features of the POP3 protocol, email client mail may not sync correctly with the server. We recommend using the IMAP protocol for Yandex.Mail. For details on how to switch between POP3 and IMAP, see Switching from POP3.

Messages are copied on the server when deleted/moved using IMAP

Message copying during the movement or deletion over IMAP is based on special features of the IMAP protocol and synchronization settings of email clients. In this event, folders should be forced to synchronize with the server so that the data matches after the actions are performed. In Mozilla Thunderbird, the Compact function must be used.

I get errors due to an incorrect certificate

If during the activation of SSL-encryption you get errors about an incorrect certificate, make sure that the mail client and the operating system are configured correctly:

  • The correct time (without any delays and “dates from the future”) is set on the computer. If a wrong date is set, the system erroneously defines the certificate period as not yet started or already elapsed.
  • Checking of the HTTPS-connections is disabled in the settings of your antivirus software To change your antivirus settings, see our instructions for Kaspersky Internet Security and ESET NOD32 Smart Security in the I see an error in the security certificate section.
Add the certificate to the list of trusted certificates manually (Windows)
Attention. If you are not sure that you can install the certificate yourself, contact a specialist.

To add the certificate to the list of trusted certificates:

  1. Download the certificate. (If the file opens by following the link directly in the browser, press CTRL + S and save the file on the computer; there is no need to copy the text from the file.)
  2. Open the Start menu.
  3. Enter certmgr.msc in the search field and press Enter.
  4. In the program, click on the Trusted root certification authorities folder in the folder tree.
  5. Right-click on Certificates in the right part of the window and choose All tasks → Import.
  6. Click Next.
  7. Click on View and select the earlier downloaded file CA.pem. Click Next.
  8. Leave the default settings in the Storage of certificates section and click Next.
  9. Click Done.
  10. (Optional) Click Accept in the popup window.
  11. Click on the folder Trusted root certification authorities → Certificates in the folder tree.
  12. In the list of certificates (on the right), find the certificate Certum CA, right-click on it and select Properties.
  13. Go to the General tab.
  14. Make sure that the option Server authentication is enabled in Allow only the following destinations.
  15. Click OK.
Adding the root certificate to Linux
The information on adding the root certificate is provided in the instructions Adding CAcert root certificate to Debian/Ubuntu.
MS Outlook 2007 does not identify the certificate
If after checking all listed parameters, Outlook 2007 continues to show the security error, download the software upgrade from the Microsoft web-site.
Problems with confirmation of the certificate in The Bat!

If you have problems confirming certificates in The Bat! mail client, update the program to version 6 or later. Perform the following actions after the software upgrade:

  1. Choose Properties → S/MIME and TLS in the program menu.
  2. Set S/MIME Implementation and TLS certificates to Internal.
  3. Click OK.
  4. Try sending an email. If you get another certificate error, go back to Properties → S/MIME and TLS → S/MIME implementation and TLS certificates and set it to Mircosoft CryptoAPI.
  5. Click OK.
Note. You need to switch the options manually because Internal only works in some versions of The Bat!, whereas Microsoft CryptoAPI only works in others.

If after all this the problem still persists, contact the Ritlabs support service.

Reconfiguration of your send script fails

Try to compare your code with the guidelines in the network:

1C software does not support SSL

To support SSL, install additional Stunnel software:

  1. Download the latest version for Windows (stunnel-version-installer.exe) from https://www.stunnel.org/downloads.html.
  2. Unpack the archive
  3. Execute file mailssl.bat as administrator.
  4. Disable SSL in the mail client settings and specify the following parameters of the servers:
    • SMTP: serverlocalhost, port25
    • POP3: serverlocalhost, port110
    • IMAP: serverlocalhost, port143
I send emails from a scanner which does not support SSL

Follow these steps to configure your multifunction device or scanner:

  1. Specify the following SMTP parameters:
    • serversmtp-devices.yandex.com
    • port25
  2. Enable authentication.
  3. Provide your username and password in the appropriate fields .
    Attention. Make sure to enter the username and password manually. If you select an authentication which is the same as that of the incoming mail server, emails will not be sent.
Restriction. You can use this method to send messages to addresses served by Yandex.Mail (in yandex.com domain or Yandex.Mail for Domain addresses) only. Emails will not reach the mailboxes of other mail services through this server.

The program constantly prompts to enter the password

If you have changed the mailbox password recently, make sure that you also update the settings in your email client. If the password in the settings is correct, wait a few hours – the mail client settings may not synchronize with the Yandex server immediately.

Try logging in using the same username and password in the web-interface: enter the authentication data again. If you are asked to enter captcha characters, you can see a list of possible reasons in Why do I have to enter captcha numbers during authorization?.

Make sure that the protocol that you want to use in the mail client is enabled in the mailbox settings.

Attention. If you are using Yandex.Mail for the domain, provide the complete address of the mailbox as username.