Fighting spam

Spam refers to unsolicited emails or mailings that are sent to your email address. It may contain advertising, “chain letters”, computer viruses, or even be a phishing attempt. To create a base of addresses, spammers use software which matches email addresses with the help of a special dictionary or gathers addresses published by users on publicly open websites.

Unsolicited mail should be differentiated from honest mail. The features of the fair mailing lists are provided in the document Requirements of Yandex to fair mailing lists.

Yandex.Mail uses “Spamoborona” to recognize spam, which is a system that trains based on users' spam complaints. It moves suspicious messages sent to your Spam folder.

Note. Messages in your Spam folder will be automatically deleted in 10 days. You will not be able to recover the deleted messages.

Yandex.Mail filters not only incoming but also outgoing mail. Every message is checked by the ESET antivirus program. Messages in which a virus is detected will be rejected by the mail server and the sender will receive a report.

  1. I get spam in my “Inbox”
  2. Suspicious messages
  3. I got a message saying that my email was not delivered (when I didn't send one)
  4. Spam was received from my address
  5. The mailing list does not reach recipients on Yandex
  6. I got the message “Email can't be sent, because it appears to be Spam”
  7. My mail client displays “Message rejected under suspicion of SPAM ”
  8. Non-spam messages arrive in the “Spam folder”
  9. How can I unsubscribe from mailing lists?

I get spam in my “Inbox”

If you think you have received a spam message in your Inbox, select the message and click It's spam! and it will be moved to Spam and the required information will be sent to Anti-Spam.

In order for Spamoborona to start automatically moving such emails to your Spam folder, it needs to get several complaints regarding similar unwanted emails first. Click Spam! for all emails that you consider to be spam until you notice that they start ending up in the Spam folder instead of your Inbox.

Tip. Send unwanted emails to your Spam folder one at a time because all emails from the same sender that get sent to your Spam at the same time will be recorded as one complaint.

If a message gets into Spam by mistake, click Not spam! and new messages from the mailing list will go to the Inbox.

Anti-Spam takes into account both general and “personal” filters which apply to specific mailboxes. Any messages that you believe to be unsolicited but another mailbox user finds useful will be filtered into Spam in your mailbox and into the Inbox of the other user's mailbox.

Suspicious messages

You may receive suspicious messages which usually are not spam. For example, you will not see your address in the To or Cc of the message header if the sender has added your address to a Bcc copy. In some cases, this may happen if another mailbox is configured to forward messages to your address. If forwarding was set up by someone other than you, contact the administrator of the server hosting the mailbox that forwards your emails and attach a copy of the email along with its properties.

Attention. Spammers often enter recipients' addresses in Bcc. Be careful when receiving such messages.

If you have received a message intended for someone other than you, the sender may have confused the address when sending it or during registration at the website. Contact the sender or the website administration to report a mistake.

I got a message saying that my email was not delivered (when I didn't send one)

You may get an email non-delivery report at an address that you didn't send anything from. This happens when spammers enter fake addresses in the From field and Reply-to hidden field. Your email address may have ended up in a database of fake addresses; spammers don't even need access to your account. The base is created by trial and error with the help of a special dictionary or populated by searching addresses that users publish on publicly open websites.

Users of any mail service may come across dangerous situations since not all servers that handle mail delivery meet sender identification requirements. If you receive this type of email, select it and click It's spam! so that Yandex can improve its spam filtration.

Check your Session history to make sure that nobody has sent messages from your mailbox other than you.

Spam was received from my address

If you are informed that you have received spam or if you receive spam emails from your own email address, the reasons for may be:

Malware infection of your computer
If the computer was infected with a virus, your Yandex.Mail account might have been hacked. Check your computer for viruses with free anti-virus programs such as CureIt! from Dr. Web or Virus Removal Tool from “Kaspersky Lab”. Then change your password.
Spoofing (forged mail headers)

Check if the email is located in the Sent folder. If the email is not there, it means that someone is sending spam with your email address specified as the reply address.

You might also get a message from the “Mailer-Daemon” service with an automatic email non-delivery report for an address that you didn't send anything to.

This usually happens because of spoofing. Spoofing is a type of internet scam, with the aim to distribute information in the form of unsolicited advertising (spam). Spammers enter fake addresses in the email properties (such as From or Reply to). They do not actually have access to your mailbox, but they use your address instead of the real address of the sender.

If you receive this type of email, select it and click Spam! so that Yandex can improve spam filtration.

Check your Session history to make sure that nobody has sent messages from your mailbox other than you.

The mailing list does not reach recipients on Yandex

If you send mailing lists to Yandex mailboxes and the emails were rejected by the Yandex mail server, you will receive an automatic report from “Mailer-Daemon” with the reasons for non-delivery and the name of the server which rejected passing the message to its destination.

Unsolicited mail should be differentiated from honest mail. To find out how honest mailings and spam are identified, see Yandex requirements for fair mailing lists. Yandex.Mail reserves the right to treat messages from mailing lists that do not comply with the mandatory requirements of this document as Spam or completely decline their delivery. Note also that meeting the optional requirements will significantly reduce the risk of your messages being marked as Spam.

I got the message “Email can't be sent, because it appears to be Spam”

If you got an error message like "Email can't be sent, because it appears to be Spam" (“Spam limit exceeded” or “Message rejected under suspicion of SPAM”), or you have to enter a CAPTCHA, it may be due to the following reasons:

You are sending generic or template-based emails

Emails that are generic or template-based are sent from your mailbox, and/or your emails contain commercial offers or ads. Yandex.Mail doesn't allow you to send these types of emails. Our service is intended for actual communication between people.

Tip. If you want to send out mass emails to your partners or clients, please use our special mailing services.
The daily limit on how many emails you can send was reached

Every day a huge number of emails can be sent from your mailbox, which can be regarded as spam. The emails can be sent both with your involvement and without your knowing about it.

In order to avoid this, Yandex has limits on emails sent per day.

Yandex.Mail limits

You can send up to 500 emails from one mailbox in a 24-hour period. If the email has several recipients, then each individual email sent counts separately towards your total.

Additional limitations are set on the number of recipients:

Number of recipientsRestriction
Total for all emails in a 24-hour period500
Emails sent through a website50
Emails sent through a mail service35
Note. Restrictions may be lifted if Spamoborona suspects that you are sending generic or template-based mass mailings, spam, ads, or commercial offers.
Restrictions on Yandex.Mail for domains

You can send 3000 * emails from one mailbox in a 24-hour period. If you entered several recipients, then a separate email will be sent to each one.

Additional limitations are set on the number of recipients:

Number of recipientsRestriction
Total emails in 24-hour period (from one mailbox)3000 *
Total emails in 24-hour period (from all mailboxes of a single domain)5000 *
Emails sent through a website50
Emails sent through a mail service35
* Only external recipients are considered; owners of the mailboxes in this domain are not considered.
Note. Restrictions may be lifted if Spamoborona suspects that you are sending generic or template-based mass mailings, spam, ads, or commercial offers.
Your account was marked as suspicious

Our security system flagged your account as suspicious. Usually this happens if you didn't link a phone number to your mailbox or a fake name was entered in your Yandex.Passport.

Emails are sent to non-existent addresses.

A large number of emails were sent to nonexistent addresses from your mailbox. If the message was sent to a non-existing address, you will receive an automated non-delivery report.

We received a complaint about a mailing sent from your email address

We received several complaints from users about spam sent from your email address.

In this case, attempts to send emails from your mailbox will be blocked. The block will only apply to attempts to send messages; you can still log in to your Yandex.Mail and get your emails. The block will be removed automatically in 24 hours if you don't attempt to send messages during that time. Otherwise it will remain for another 24 hours.

While you are waiting for the block to be removed, follow the recommendations below to avoid similar issues in the future:

  1. Check your computer for viruses using free antivirus programs: CureIt! from Dr.Web and Virus Removal Tool“ from Kaspersky Lab ”. Then change your password.
  2. Enter your valid personal information on your Yandex.Passport page and link your phone number to your account on the Mobile numbers page.
    Note. If you use Yandex.Mail for domain, enter accurate information for all your domain mailboxes.
  3. Make sure the your recipients addresses are entered correctly and remain active.
  4. Make sure that recipients of your emails have voluntarily agreed to receive them.

My mail client displays “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 solve the problem, open the Yandex.Mail https://mail.yandex.com/web interface and send any email as a test. This way you prove that a robot is not sending the emails.

Please, also check your computer for viruses with free anti-virus programs such as CureIt! from Dr. Web and Virus Removal Tool from “Kaspersky Lab”.

For more details, see I got a message that the Email can't be sent.

Non-spam messages arrive in the “Spam folder”

If a non-spam message arrives in the Spam folder by mistake, select it and click on It's not spam. This email will be moved to the Inbox folder. After a while, all emails from this address will start arriving in the Inbox folder again.

The It's spam! button does not work

Emails may end up in Spam if you use certain mail clients to manage your Yandex.Mail (such as Microsoft Outlook, The Bat!, or Thunderbird for desktop or Mail.Ru, Gmail, or Mailbox for smartphone or tablet). Some mail clients have built-in anti-spam filters that may send emails to the Spam folder.

If the Not spam! button does not work on Yandex.Mail, click it in your mail program or app (it may have a different name in other e-mail programs). Also disable the Spam check in the settings of your mail client so that emails aren't sent there automatically.

If the program has no spam filter, then change the password to your Yandex mailbox. Changing your password may help if you set up the program earlier and don't currently use it, but the program is still running and continues to send emails to Spam.

How can I unsubscribe from mailing lists?

If you have subscribed to the mailing list of a website or service and do not wish to receive messages any more, you can unsubscribe directly from the mailbox. To do this, open any newsletter message and click Unsubscribe:

After you click the button, the selected message will be moved to Trash. Messages from this mailing list will stop coming to your mailbox.

Attention. If the unsubscribe procedure was unsuccessful (for example, a wrong unsubscribe link was provided in the message or the request was processed incorrectly by the website or service), messages from the mailing list will continue arriving in your mailbox but the messages will be filtered as Spam.